1434040020 has 72 divisors (see below), whose sum is σ = 4971343104. Its totient is φ = 327780288.

The previous prime is 1434040007. The next prime is 1434040021. The reversal of 1434040020 is 200404341.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1434039975 and 1434040002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1434040021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 567804 + ... + 570323.

It is an arithmetic number, because the mean of its divisors is an integer number (69046432).

Almost surely, 2^1434040020 is an apocalyptic number.

1434040020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1434040020 is an abundant number, since it is smaller than the sum of its proper divisors (3537303084).

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

1434040020 is a wasteful number, since it uses less digits than its factorization.

1434040020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138149 (or 1138144 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1434040020 is about 37868.7208656432. The cubic root of 1434040020 is about 1127.6831481415.

Adding to 1434040020 its reverse (200404341), we get a palindrome (1634444361).

The spelling of 1434040020 in words is "one billion, four hundred thirty-four million, forty thousand, twenty".