31426004 has 12 divisors (see below), whose sum is σ = 57386784. Its totient is φ = 15029784.

The previous prime is 31426001. The next prime is 31426009. The reversal of 31426004 is 40062413.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31426001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170702 + ... + 170885.

It is an arithmetic number, because the mean of its divisors is an integer number (4782232).

Almost surely, 2^31426004 is an apocalyptic number.

It is an amenable number.

31426004 is a deficient number, since it is larger than the sum of its proper divisors (25960780).

31426004 is a wasteful number, since it uses less digits than its factorization.

31426004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341614 (or 341612 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 31426004 is about 5605.8901166541. The cubic root of 31426004 is about 315.5704921589.

Adding to 31426004 its reverse (40062413), we get a palindrome (71488417).

The spelling of 31426004 in words is "thirty-one million, four hundred twenty-six thousand, four".