40457951 has 2 divisors, whose sum is σ = 40457952. Its totient is φ = 40457950.

The previous prime is 40457947. The next prime is 40457957. The reversal of 40457951 is 15975404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40457951 - 2² = 40457947 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40457957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20228975 + 20228976.

It is an arithmetic number, because the mean of its divisors is an integer number (20228976).

Almost surely, 2^40457951 is an apocalyptic number.

40457951 is a deficient number, since it is larger than the sum of its proper divisors (1).

40457951 is an equidigital number, since it uses as much as digits as its factorization.

40457951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 40457951 is about 6360.6564912751. The cubic root of 40457951 is about 343.2953820076.

The spelling of 40457951 in words is "forty million, four hundred fifty-seven thousand, nine hundred fifty-one".