40532072 has 32 divisors (see below), whose sum is σ = 90633600. Its totient is φ = 16615104.

The previous prime is 40532071. The next prime is 40532077. The reversal of 40532072 is 27023504.

It is a super-2 number, since 2×40532072² = 3285697721226368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (40532071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14447 + ... + 17022.

It is an arithmetic number, because the mean of its divisors is an integer number (2832300).

Almost surely, 2^40532072 is an apocalyptic number.

It is an amenable number.

40532072 is an abundant number, since it is smaller than the sum of its proper divisors (50101528).

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

40532072 is a wasteful number, since it uses less digits than its factorization.

40532072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31505 (or 31501 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 40532072 is about 6366.4803463138. The cubic root of 40532072 is about 343.5048989101.

Adding to 40532072 its reverse (27023504), we get a palindrome (67555576).

The spelling of 40532072 in words is "forty million, five hundred thirty-two thousand, seventy-two".