40374157 has 2 divisors, whose sum is σ = 40374158. Its totient is φ = 40374156.

The previous prime is 40374151. The next prime is 40374161. The reversal of 40374157 is 75147304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40373316 + 841 = 6354^2 + 29^2 .

It is a cyclic number.

It is not a de Polignac number, because 40374157 - 2³ = 40374149 is a prime.

It is equal to p_2455096 and since 40374157 and 2455096 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40374151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20187078 + 20187079.

It is an arithmetic number, because the mean of its divisors is an integer number (20187079).

Almost surely, 2^40374157 is an apocalyptic number.

It is an amenable number.

40374157 is a deficient number, since it is larger than the sum of its proper divisors (1).

40374157 is an equidigital number, since it uses as much as digits as its factorization.

40374157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 40374157 is about 6354.0661784404. The cubic root of 40374157 is about 343.0582141586.

The spelling of 40374157 in words is "forty million, three hundred seventy-four thousand, one hundred fifty-seven".