40933521 has 12 divisors (see below), whose sum is σ = 59387380. Its totient is φ = 27168480.

The previous prime is 40933513. The next prime is 40933553. The reversal of 40933521 is 12533904.

It can be written as a sum of positive squares in 2 ways, for example, as 17313921 + 23619600 = 4161^2 + 4860^2 .

It is not a de Polignac number, because 40933521 - 2³ = 40933513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40933561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7870 + ... + 11991.

Almost surely, 2^40933521 is an apocalyptic number.

It is an amenable number.

40933521 is a deficient number, since it is larger than the sum of its proper divisors (18453859).

40933521 is a wasteful number, since it uses less digits than its factorization.

40933521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20096 (or 20093 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 40933521 is about 6397.9309936885. The cubic root of 40933521 is about 344.6352540854.

It can be divided in two parts, 409 and 33521, that added together give a triangular number (33930 = T₂₆₀).

The spelling of 40933521 in words is "forty million, nine hundred thirty-three thousand, five hundred twenty-one".