40722624 has 126 divisors (see below), whose sum is σ = 124914660. Its totient is φ = 12648960.

The previous prime is 40722593. The next prime is 40722631. The reversal of 40722624 is 42622704.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 667554 + ... + 667614.

Almost surely, 2^40722624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40722624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62457330).

40722624 is an abundant number, since it is smaller than the sum of its proper divisors (84192036).

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

40722624 is a wasteful number, since it uses less digits than its factorization.

40722624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 40722624 is about 6381.4280533435. The cubic root of 40722624 is about 344.0423600261.

The spelling of 40722624 in words is "forty million, seven hundred twenty-two thousand, six hundred twenty-four".