40157455 has 16 divisors (see below), whose sum is σ = 52676064. Its totient is φ = 29208960.

The previous prime is 40157449. The next prime is 40157461. The reversal of 40157455 is 55475104.

It is an interprime number because it is at equal distance from previous prime (40157449) and next prime (40157461).

It is not a de Polignac number, because 40157455 - 2⁹ = 40156943 is a prime.

It is a super-2 number, since 2×40157455² = 3225242384154050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256 + ... + 8965.

It is an arithmetic number, because the mean of its divisors is an integer number (3292254).

Almost surely, 2^40157455 is an apocalyptic number.

40157455 is a deficient number, since it is larger than the sum of its proper divisors (12518609).

40157455 is a wasteful number, since it uses less digits than its factorization.

40157455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9306.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 40157455 is about 6336.9910052011. The cubic root of 40157455 is about 342.4433422539.

The spelling of 40157455 in words is "forty million, one hundred fifty-seven thousand, four hundred fifty-five".