40622831 has 4 divisors (see below), whose sum is σ = 41567592. Its totient is φ = 39678072.

The previous prime is 40622819. The next prime is 40622849. The reversal of 40622831 is 13822604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40622831 - 2¹⁰ = 40621807 is a prime.

It is a super-2 number, since 2×40622831² = 3300428796909122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40622831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40622801) 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, 472316 + ... + 472401.

It is an arithmetic number, because the mean of its divisors is an integer number (10391898).

Almost surely, 2^40622831 is an apocalyptic number.

40622831 is a deficient number, since it is larger than the sum of its proper divisors (944761).

40622831 is an equidigital number, since it uses as much as digits as its factorization.

40622831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944760.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 40622831 is about 6373.6042393610. The cubic root of 40622831 is about 343.7610986609.

The spelling of 40622831 in words is "forty million, six hundred twenty-two thousand, eight hundred thirty-one".