7131404 has 24 divisors (see below), whose sum is σ = 14568960. Its totient is φ = 2990736.

The previous prime is 7131379. The next prime is 7131407. The reversal of 7131404 is 4041317.

It is a super-2 number, since 2×7131404² = 101713846022432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7131407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1394 + ... + 4025.

It is an arithmetic number, because the mean of its divisors is an integer number (607040).

Almost surely, 2^7131404 is an apocalyptic number.

It is an amenable number.

7131404 is an abundant number, since it is smaller than the sum of its proper divisors (7437556).

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

7131404 is a wasteful number, since it uses less digits than its factorization.

7131404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5477 (or 5475 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 7131404 is about 2670.4688726888. The cubic root of 7131404 is about 192.4826902971.

The spelling of 7131404 in words is "seven million, one hundred thirty-one thousand, four hundred four".