1431730040 has 64 divisors (see below), whose sum is σ = 3581141760. Its totient is φ = 511580160.

The previous prime is 1431730039. The next prime is 1431730043. The reversal of 1431730040 is 400371341.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1431729988 and 1431730015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431730043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28289 + ... + 60528.

It is an arithmetic number, because the mean of its divisors is an integer number (55955340).

Almost surely, 2^1431730040 is an apocalyptic number.

1431730040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1431730040 is an abundant number, since it is smaller than the sum of its proper divisors (2149411720).

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

1431730040 is a wasteful number, since it uses less digits than its factorization.

1431730040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88872 (or 88868 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 1431730040 is about 37838.2087313868. The cubic root of 1431730040 is about 1127.0773246351.

The spelling of 1431730040 in words is "one billion, four hundred thirty-one million, seven hundred thirty thousand, forty".