40422627642 has 32 divisors (see below), whose sum is σ = 90106171200. Its totient is φ = 12014155008.

The previous prime is 40422627577. The next prime is 40422627643. The reversal of 40422627642 is 24672622404.

It is a self number, because there is not a number n which added to its sum of digits gives 40422627642.

It is not an unprimeable number, because it can be changed into a prime (40422627643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10427017 + ... + 10430892.

It is an arithmetic number, because the mean of its divisors is an integer number (2815817850).

Almost surely, 2^40422627642 is an apocalyptic number.

40422627642 is an abundant number, since it is smaller than the sum of its proper divisors (49683543558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40422627642 is a wasteful number, since it uses less digits than its factorization.

40422627642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20857950.

The product of its (nonzero) digits is 258048, while the sum is 39.

The spelling of 40422627642 in words is "forty billion, four hundred twenty-two million, six hundred twenty-seven thousand, six hundred forty-two".