400214431320 has 64 divisors (see below), whose sum is σ = 1309792688640. Its totient is φ = 97021680000.

The previous prime is 400214431297. The next prime is 400214431321. The reversal of 400214431320 is 23134412004.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400214431321) 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, 151595056 + ... + 151597695.

It is an arithmetic number, because the mean of its divisors is an integer number (20465510760).

Almost surely, 2^400214431320 is an apocalyptic number.

400214431320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400214431320 is an abundant number, since it is smaller than the sum of its proper divisors (909578257320).

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

400214431320 is a wasteful number, since it uses less digits than its factorization.

400214431320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303192776 (or 303192772 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 400214431320 its reverse (23134412004), we get a palindrome (423348843324).

The spelling of 400214431320 in words is "four hundred billion, two hundred fourteen million, four hundred thirty-one thousand, three hundred twenty".