40552540 has 48 divisors (see below), whose sum is σ = 99412992. Its totient is φ = 13605696.

The previous prime is 40552511. The next prime is 40552541. The reversal of 40552540 is 4525504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40552541) 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, 3499 + ... + 9661.

It is an arithmetic number, because the mean of its divisors is an integer number (2071104).

Almost surely, 2^40552540 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 40552540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49706496).

40552540 is an abundant number, since it is smaller than the sum of its proper divisors (58860452).

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

40552540 is a wasteful number, since it uses less digits than its factorization.

40552540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6226 (or 6224 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 40552540 is about 6368.0876250253. The cubic root of 40552540 is about 343.5627105373.

The spelling of 40552540 in words is "forty million, five hundred fifty-two thousand, five hundred forty".