40622651 has 4 divisors (see below), whose sum is σ = 40881552. Its totient is φ = 40363752.

The previous prime is 40622641. The next prime is 40622671. The reversal of 40622651 is 15622604.

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 40622651 - 2⁶ = 40622587 is a prime.

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 40622651.

It is not an unprimeable number, because it can be changed into a prime (40622641) 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, 129215 + ... + 129528.

It is an arithmetic number, because the mean of its divisors is an integer number (10220388).

Almost surely, 2^40622651 is an apocalyptic number.

40622651 is a deficient number, since it is larger than the sum of its proper divisors (258901).

40622651 is a wasteful number, since it uses less digits than its factorization.

40622651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258900.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 40622651 is about 6373.5901186066. The cubic root of 40622651 is about 343.7605909244.

The spelling of 40622651 in words is "forty million, six hundred twenty-two thousand, six hundred fifty-one".