31402046 has 16 divisors (see below), whose sum is σ = 51097200. Its totient is φ = 14387328.

The previous prime is 31402037. The next prime is 31402069. The reversal of 31402046 is 64020413.

It is a happy number.

It is a super-2 number, since 2×31402046² = 1972176985972232, which contains 22 as substring.

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, 731 + ... + 7958.

It is an arithmetic number, because the mean of its divisors is an integer number (3193575).

Almost surely, 2^31402046 is an apocalyptic number.

31402046 is a deficient number, since it is larger than the sum of its proper divisors (19695154).

31402046 is a wasteful number, since it uses less digits than its factorization.

31402046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8843.

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

The square root of 31402046 is about 5603.7528496535. The cubic root of 31402046 is about 315.4902787584.

Adding to 31402046 its reverse (64020413), we get a palindrome (95422459).

The spelling of 31402046 in words is "thirty-one million, four hundred two thousand, forty-six".