40302904 has 8 divisors (see below), whose sum is σ = 75567960. Its totient is φ = 20151448.

The previous prime is 40302901. The next prime is 40302931. The reversal of 40302904 is 40920304.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40302901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2518924 + ... + 2518939.

It is an arithmetic number, because the mean of its divisors is an integer number (9445995).

Almost surely, 2^40302904 is an apocalyptic number.

It is an amenable number.

40302904 is a deficient number, since it is larger than the sum of its proper divisors (35265056).

40302904 is a wasteful number, since it uses less digits than its factorization.

40302904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5037869 (or 5037865 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 40302904 is about 6348.4568203619. The cubic root of 40302904 is about 342.8562836619.

The spelling of 40302904 in words is "forty million, three hundred two thousand, nine hundred four".