40523072 has 28 divisors (see below), whose sum is σ = 80724756. Its totient is φ = 20183040.

The previous prime is 40523069. The next prime is 40523081. The reversal of 40523072 is 27032504.

It can be written as a sum of positive squares in 2 ways, for example, as 32993536 + 7529536 = 5744^2 + 2744^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17672 + ... + 19832.

It is an arithmetic number, because the mean of its divisors is an integer number (2883027).

Almost surely, 2^40523072 is an apocalyptic number.

It is an amenable number.

40523072 is a deficient number, since it is larger than the sum of its proper divisors (40201684).

40523072 is a wasteful number, since it uses less digits than its factorization.

40523072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466 (or 2456 counting only the distinct ones).

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

The square root of 40523072 is about 6365.7734801044. The cubic root of 40523072 is about 343.4794723545.

Adding to 40523072 its reverse (27032504), we get a palindrome (67555576).

The spelling of 40523072 in words is "forty million, five hundred twenty-three thousand, seventy-two".