40304757 has 16 divisors (see below), whose sum is σ = 57136320. Its totient is φ = 25200000.

The previous prime is 40304753. The next prime is 40304777. The reversal of 40304757 is 75740304.

It is not a de Polignac number, because 40304757 - 2² = 40304753 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40304753) by changing a digit.

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, 2257 + ... + 9257.

It is an arithmetic number, because the mean of its divisors is an integer number (3571020).

Almost surely, 2^40304757 is an apocalyptic number.

It is an amenable number.

40304757 is a deficient number, since it is larger than the sum of its proper divisors (16831563).

40304757 is a wasteful number, since it uses less digits than its factorization.

40304757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7124.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 40304757 is about 6348.6027596629. The cubic root of 40304757 is about 342.8615380637.

The spelling of 40304757 in words is "forty million, three hundred four thousand, seven hundred fifty-seven".