40528180 has 48 divisors (see below), whose sum is σ = 106114176. Its totient is φ = 12631680.

The previous prime is 40528171. The next prime is 40528183. The reversal of 40528180 is 8182504.

It is a super-2 number, since 2×40528180² = 3285066748224800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40528183) 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, 11619 + ... + 14698.

It is an arithmetic number, because the mean of its divisors is an integer number (2210712).

Almost surely, 2^40528180 is an apocalyptic number.

It is an amenable number.

40528180 is an abundant number, since it is smaller than the sum of its proper divisors (65585996).

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

40528180 is a wasteful number, since it uses less digits than its factorization.

40528180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26344 (or 26342 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 40528180 is about 6366.1746755803. The cubic root of 40528180 is about 343.4939037993.

The spelling of 40528180 in words is "forty million, five hundred twenty-eight thousand, one hundred eighty".