40157454 has 8 divisors (see below), whose sum is σ = 80314920. Its totient is φ = 13385816.

The previous prime is 40157449. The next prime is 40157461. The reversal of 40157454 is 45475104.

It is a sphenic number, since it is the product of 3 distinct primes.

40157454 is an admirable number.

It is a super-2 number, since 2×40157454² = 3225242223524232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3346449 + ... + 3346460.

It is an arithmetic number, because the mean of its divisors is an integer number (10039365).

Almost surely, 2^40157454 is an apocalyptic number.

40157454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40157454 is a wasteful number, since it uses less digits than its factorization.

40157454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6692914.

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 40157454 is about 6336.9909262993. The cubic root of 40157454 is about 342.4433394114.

The spelling of 40157454 in words is "forty million, one hundred fifty-seven thousand, four hundred fifty-four".