40572500 has 30 divisors (see below), whose sum is σ = 88729410. Its totient is φ = 16228000.

The previous prime is 40572473. The next prime is 40572509. The reversal of 40572500 is 527504.

It can be written as a sum of positive squares in 5 ways, for example, as 5098564 + 35473936 = 2258^2 + 5956^2 .

It is a super-2 number, since 2×40572500² = 3292255512500000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40572509) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5615 + ... + 10614.

It is an arithmetic number, because the mean of its divisors is an integer number (2957647).

Almost surely, 2^40572500 is an apocalyptic number.

It is an amenable number.

40572500 is an abundant number, since it is smaller than the sum of its proper divisors (48156910).

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

40572500 is a wasteful number, since it uses less digits than its factorization.

40572500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16253 (or 16236 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 40572500 is about 6369.6546217201. The cubic root of 40572500 is about 343.6190685930.

The spelling of 40572500 in words is "forty million, five hundred seventy-two thousand, five hundred".