40354907 has 2 divisors, whose sum is σ = 40354908. Its totient is φ = 40354906.

The previous prime is 40354883. The next prime is 40354927. The reversal of 40354907 is 70945304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40354907 - 2¹² = 40350811 is a prime.

It is not a weakly prime, because it can be changed into another prime (40354927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20177453 + 20177454.

It is an arithmetic number, because the mean of its divisors is an integer number (20177454).

Almost surely, 2^40354907 is an apocalyptic number.

40354907 is a deficient number, since it is larger than the sum of its proper divisors (1).

40354907 is an equidigital number, since it uses as much as digits as its factorization.

40354907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 40354907 is about 6352.5512197856. The cubic root of 40354907 is about 343.0036832330.

The spelling of 40354907 in words is "forty million, three hundred fifty-four thousand, nine hundred seven".