40457941 has 2 divisors, whose sum is σ = 40457942. Its totient is φ = 40457940.

The previous prime is 40457917. The next prime is 40457947. The reversal of 40457941 is 14975404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40259025 + 198916 = 6345^2 + 446^2 .

It is a cyclic number.

It is not a de Polignac number, because 40457941 - 2¹⁵ = 40425173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40457897 and 40457906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40457947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20228970 + 20228971.

It is an arithmetic number, because the mean of its divisors is an integer number (20228971).

Almost surely, 2^40457941 is an apocalyptic number.

It is an amenable number.

40457941 is a deficient number, since it is larger than the sum of its proper divisors (1).

40457941 is an equidigital number, since it uses as much as digits as its factorization.

40457941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 40457941 is about 6360.6557051927. The cubic root of 40457941 is about 343.2953537235.

The spelling of 40457941 in words is "forty million, four hundred fifty-seven thousand, nine hundred forty-one".