400524332 has 48 divisors (see below), whose sum is σ = 808147200. Its totient is φ = 172134720.

The previous prime is 400524331. The next prime is 400524343. The reversal of 400524332 is 233425004.

It is a junction number, because it is equal to n+sod(n) for n = 400524298 and 400524307.

It is not an unprimeable number, because it can be changed into a prime (400524331) 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, 54857 + ... + 61727.

It is an arithmetic number, because the mean of its divisors is an integer number (16836400).

Almost surely, 2^400524332 is an apocalyptic number.

It is an amenable number.

400524332 is an abundant number, since it is smaller than the sum of its proper divisors (407622868).

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

400524332 is a wasteful number, since it uses less digits than its factorization.

400524332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6966 (or 6964 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 400524332 is about 20013.1040071249. The cubic root of 400524332 is about 737.1281017604.

Adding to 400524332 its reverse (233425004), we get a palindrome (633949336).

The spelling of 400524332 in words is "four hundred million, five hundred twenty-four thousand, three hundred thirty-two".