30040040457 has 40 divisors (see below), whose sum is σ = 51380611392. Its totient is φ = 17133832800.

The previous prime is 30040040441. The next prime is 30040040477. The reversal of 30040040457 is 75404004003.

It is not a de Polignac number, because 30040040457 - 2⁴ = 30040040441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 30040040457.

It is not an unprimeable number, because it can be changed into a prime (30040040477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 257782 + ... + 355712.

Almost surely, 2^30040040457 is an apocalyptic number.

It is an amenable number.

30040040457 is a deficient number, since it is larger than the sum of its proper divisors (21340570935).

30040040457 is an equidigital number, since it uses as much as digits as its factorization.

30040040457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98491 (or 98482 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The spelling of 30040040457 in words is "thirty billion, forty million, forty thousand, four hundred fifty-seven".