40813057 has 2 divisors, whose sum is σ = 40813058. Its totient is φ = 40813056.

The previous prime is 40813051. The next prime is 40813079. The reversal of 40813057 is 75031804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37442161 + 3370896 = 6119^2 + 1836^2 .

It is a cyclic number.

It is not a de Polignac number, because 40813057 - 2³ = 40813049 is a prime.

It is not a weakly prime, because it can be changed into another prime (40813051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20406528 + 20406529.

It is an arithmetic number, because the mean of its divisors is an integer number (20406529).

Almost surely, 2^40813057 is an apocalyptic number.

It is an amenable number.

40813057 is a deficient number, since it is larger than the sum of its proper divisors (1).

40813057 is an equidigital number, since it uses as much as digits as its factorization.

40813057 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 28.

The square root of 40813057 is about 6388.5097636303. The cubic root of 40813057 is about 344.2968441209.

The spelling of 40813057 in words is "forty million, eight hundred thirteen thousand, fifty-seven".