40057500 has 180 divisors, whose sum is σ = 137112360. Its totient is φ = 9072000.

The previous prime is 40057481. The next prime is 40057531. The reversal of 40057500 is 575004.

40057500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 367446 + ... + 367554.

Almost surely, 2^40057500 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 40057500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68556180).

40057500 is an abundant number, since it is smaller than the sum of its proper divisors (97054860).

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

40057500 is a wasteful number, since it uses less digits than its factorization.

40057500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 40057500 is about 6329.0994620088. The cubic root of 40057500 is about 342.1589835705.

The spelling of 40057500 in words is "forty million, fifty-seven thousand, five hundred".