40642264 has 16 divisors (see below), whose sum is σ = 82066320. Its totient is φ = 18757920.

The previous prime is 40642249. The next prime is 40642297. The reversal of 40642264 is 46224604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195292 + ... + 195499.

It is an arithmetic number, because the mean of its divisors is an integer number (5129145).

Almost surely, 2^40642264 is an apocalyptic number.

It is an amenable number.

40642264 is an abundant number, since it is smaller than the sum of its proper divisors (41424056).

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

40642264 is a wasteful number, since it uses less digits than its factorization.

40642264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390810 (or 390806 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 40642264 is about 6375.1285477236. The cubic root of 40642264 is about 343.8159056444.

Adding to 40642264 its reverse (46224604), we get a palindrome (86866868).

It can be divided in two parts, 4064 and 2264, that added together give a triangular number (6328 = T₁₁₂).

The spelling of 40642264 in words is "forty million, six hundred forty-two thousand, two hundred sixty-four".