1431450020 has 192 divisors, whose sum is σ = 4075094016. Its totient is φ = 407877120.

The previous prime is 1431449993. The next prime is 1431450029. The reversal of 1431450020 is 200541341.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1431449974 and 1431450001.

It is not an unprimeable number, because it can be changed into a prime (1431450029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2542259 + ... + 2542821.

It is an arithmetic number, because the mean of its divisors is an integer number (21224448).

Almost surely, 2^1431450020 is an apocalyptic number.

1431450020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1431450020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2037547008).

1431450020 is an abundant number, since it is smaller than the sum of its proper divisors (2643643996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1431450020 is a wasteful number, since it uses less digits than its factorization.

1431450020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1431450020 is about 37834.5083224297. The cubic root of 1431450020 is about 1127.0038413290.

Adding to 1431450020 its reverse (200541341), we get a palindrome (1631991361).

The spelling of 1431450020 in words is "one billion, four hundred thirty-one million, four hundred fifty thousand, twenty".