400435898080 has 96 divisors (see below), whose sum is σ = 988066810080. Its totient is φ = 153203742720.

The previous prime is 400435898003. The next prime is 400435898081. The reversal of 400435898080 is 80898534004.

It is a super-2 number, since 2×400435898080² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400435898081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223951 + ... + 922510.

It is an arithmetic number, because the mean of its divisors is an integer number (10292362605).

Almost surely, 2^400435898080 is an apocalyptic number.

400435898080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400435898080 is an abundant number, since it is smaller than the sum of its proper divisors (587630912000).

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

400435898080 is a wasteful number, since it uses less digits than its factorization.

400435898080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146572 (or 1146564 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 400435898080 in words is "four hundred billion, four hundred thirty-five million, eight hundred ninety-eight thousand, eighty".