40523937 has 8 divisors (see below), whose sum is σ = 57210336. Its totient is φ = 25426752.

The previous prime is 40523929. The next prime is 40523939. The reversal of 40523937 is 73932504.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40523937 - 2³ = 40523929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40523898 and 40523907.

It is not an unprimeable number, because it can be changed into a prime (40523939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397243 + ... + 397344.

It is an arithmetic number, because the mean of its divisors is an integer number (7151292).

Almost surely, 2^40523937 is an apocalyptic number.

It is an amenable number.

40523937 is a deficient number, since it is larger than the sum of its proper divisors (16686399).

40523937 is a wasteful number, since it uses less digits than its factorization.

40523937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794607.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 40523937 is about 6365.8414212106. The cubic root of 40523937 is about 343.4819162926.

It can be divided in two parts, 405 and 23937, that added together give a palindrome (24342).

The spelling of 40523937 in words is "forty million, five hundred twenty-three thousand, nine hundred thirty-seven".