40642416 has 30 divisors (see below), whose sum is σ = 113742720. Its totient is φ = 13547424.

The previous prime is 40642411. The next prime is 40642417. The reversal of 40642416 is 61424604.

40642416 is a `hidden beast` number, since 4 + 0 + 642 + 4 + 16 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 40642416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40642411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140976 + ... + 141263.

It is an arithmetic number, because the mean of its divisors is an integer number (3791424).

Almost surely, 2^40642416 is an apocalyptic number.

It is an amenable number.

40642416 is an abundant number, since it is smaller than the sum of its proper divisors (73100304).

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

40642416 is a wasteful number, since it uses less digits than its factorization.

40642416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282253 (or 282244 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 40642416 is about 6375.1404690407. The cubic root of 40642416 is about 343.8163342619.

The spelling of 40642416 in words is "forty million, six hundred forty-two thousand, four hundred sixteen".