404040372 has 24 divisors (see below), whose sum is σ = 943932192. Its totient is φ = 134512800.

The previous prime is 404040361. The next prime is 404040401. The reversal of 404040372 is 273040404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10654 + ... + 30357.

It is an arithmetic number, because the mean of its divisors is an integer number (39330508).

Almost surely, 2^404040372 is an apocalyptic number.

It is an amenable number.

404040372 is an abundant number, since it is smaller than the sum of its proper divisors (539891820).

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

404040372 is a wasteful number, since it uses less digits than its factorization.

404040372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41839 (or 41837 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 404040372 is about 20100.7555081892. The cubic root of 404040372 is about 739.2788030787.

Adding to 404040372 its reverse (273040404), we get a palindrome (677080776).

The spelling of 404040372 in words is "four hundred four million, forty thousand, three hundred seventy-two".