40457519 has 2 divisors, whose sum is σ = 40457520. Its totient is φ = 40457518.

The previous prime is 40457513. The next prime is 40457551. The reversal of 40457519 is 91575404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40457519 - 2¹² = 40453423 is a prime.

It is a super-2 number, since 2×40457519² = 3273621687270722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40457513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20228759 + 20228760.

It is an arithmetic number, because the mean of its divisors is an integer number (20228760).

Almost surely, 2^40457519 is an apocalyptic number.

40457519 is a deficient number, since it is larger than the sum of its proper divisors (1).

40457519 is an equidigital number, since it uses as much as digits as its factorization.

40457519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 40457519 is about 6360.6225324256. The cubic root of 40457519 is about 343.2941601288.

The spelling of 40457519 in words is "forty million, four hundred fifty-seven thousand, five hundred nineteen".