40725624 has 64 divisors (see below), whose sum is σ = 105092640. Its totient is φ = 13145600.

The previous prime is 40725583. The next prime is 40725631. The reversal of 40725624 is 42652704.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 40725591 and 40725600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128314 + ... + 128630.

Almost surely, 2^40725624 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 40725624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52546320).

40725624 is an abundant number, since it is smaller than the sum of its proper divisors (64367016).

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

40725624 is a wasteful number, since it uses less digits than its factorization.

40725624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 40725624 is about 6381.6631061190. The cubic root of 40725624 is about 344.0508082516.

The spelling of 40725624 in words is "forty million, seven hundred twenty-five thousand, six hundred twenty-four".