40624459 has 2 divisors, whose sum is σ = 40624460. Its totient is φ = 40624458.

The previous prime is 40624439. The next prime is 40624471. The reversal of 40624459 is 95442604.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40624459 - 2²⁵ = 7070027 is a prime.

It is a super-3 number, since 3×40624459³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (40624439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20312229 + 20312230.

It is an arithmetic number, because the mean of its divisors is an integer number (20312230).

Almost surely, 2^40624459 is an apocalyptic number.

40624459 is a deficient number, since it is larger than the sum of its proper divisors (1).

40624459 is an equidigital number, since it uses as much as digits as its factorization.

40624459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 40624459 is about 6373.7319523180. The cubic root of 40624459 is about 343.7656907879.

The spelling of 40624459 in words is "forty million, six hundred twenty-four thousand, four hundred fifty-nine".