2931404 has 12 divisors (see below), whose sum is σ = 5862864. Its totient is φ = 1256304.

The previous prime is 2931319. The next prime is 2931413. The reversal of 2931404 is 4041392.

2931404 is an admirable number.

It is a super-2 number, since 2×2931404² = 17186258822432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2931404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52319 + ... + 52374.

It is an arithmetic number, because the mean of its divisors is an integer number (488572).

2^2931404 is an apocalyptic number.

It is an amenable number.

2931404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2931404 is a wasteful number, since it uses less digits than its factorization.

2931404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104704 (or 104702 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 2931404 is about 1712.1343405235. The cubic root of 2931404 is about 143.1172201361.

Adding to 2931404 its reverse (4041392), we get a palindrome (6972796).

The spelling of 2931404 in words is "two million, nine hundred thirty-one thousand, four hundred four".