40027157 has 4 divisors (see below), whose sum is σ = 40073676. Its totient is φ = 39980640.

The previous prime is 40027151. The next prime is 40027171. The reversal of 40027157 is 75172004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26770276 + 13256881 = 5174^2 + 3641^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40027157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40027151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21944 + ... + 23697.

It is an arithmetic number, because the mean of its divisors is an integer number (10018419).

Almost surely, 2^40027157 is an apocalyptic number.

It is an amenable number.

40027157 is a deficient number, since it is larger than the sum of its proper divisors (46519).

40027157 is an equidigital number, since it uses as much as digits as its factorization.

40027157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46518.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 40027157 is about 6326.7019054164. The cubic root of 40027157 is about 342.0725681878.

The spelling of 40027157 in words is "forty million, twenty-seven thousand, one hundred fifty-seven".