40157419 has 2 divisors, whose sum is σ = 40157420. Its totient is φ = 40157418.

The previous prime is 40157413. The next prime is 40157441. The reversal of 40157419 is 91475104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40157419 - 2⁷ = 40157291 is a prime.

It is a super-2 number, since 2×40157419² = 3225236601483122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40157413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20078709 + 20078710.

It is an arithmetic number, because the mean of its divisors is an integer number (20078710).

Almost surely, 2^40157419 is an apocalyptic number.

40157419 is a deficient number, since it is larger than the sum of its proper divisors (1).

40157419 is an equidigital number, since it uses as much as digits as its factorization.

40157419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 40157419 is about 6336.9881647357. The cubic root of 40157419 is about 342.4432399236.

The spelling of 40157419 in words is "forty million, one hundred fifty-seven thousand, four hundred nineteen".