31422629 has 8 divisors (see below), whose sum is σ = 36241920. Its totient is φ = 26685936.

The previous prime is 31422593. The next prime is 31422641. The reversal of 31422629 is 92622413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31422629 - 2⁸ = 31422373 is a prime.

It is a super-2 number, since 2×31422629² = 1974763226543282, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 31422629 parts by 7927 straight cuts.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422659) 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, 19829 + ... + 21354.

It is an arithmetic number, because the mean of its divisors is an integer number (4530240).

Almost surely, 2^31422629 is an apocalyptic number.

It is an amenable number.

31422629 is a deficient number, since it is larger than the sum of its proper divisors (4819291).

31422629 is a wasteful number, since it uses less digits than its factorization.

31422629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41299.

The product of its digits is 5184, while the sum is 29.

The square root of 31422629 is about 5605.5890859035. The cubic root of 31422629 is about 315.5591948424.

The spelling of 31422629 in words is "thirty-one million, four hundred twenty-two thousand, six hundred twenty-nine".