40513427 has 2 divisors, whose sum is σ = 40513428. Its totient is φ = 40513426.

The previous prime is 40513393. The next prime is 40513433. The reversal of 40513427 is 72431504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40513427 - 2⁸ = 40513171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40513396 and 40513405.

It is not a weakly prime, because it can be changed into another prime (40513027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20256713 + 20256714.

It is an arithmetic number, because the mean of its divisors is an integer number (20256714).

Almost surely, 2^40513427 is an apocalyptic number.

40513427 is a deficient number, since it is larger than the sum of its proper divisors (1).

40513427 is an equidigital number, since it uses as much as digits as its factorization.

40513427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 40513427 is about 6365.0158680085. The cubic root of 40513427 is about 343.4522193830.

The spelling of 40513427 in words is "forty million, five hundred thirteen thousand, four hundred twenty-seven".