40366004 has 18 divisors (see below), whose sum is σ = 82174050. Its totient is φ = 17299632.

The previous prime is 40365961. The next prime is 40366031. The reversal of 40366004 is 40066304.

It can be written as a sum of positive squares in only one way, i.e., 28601104 + 11764900 = 5348^2 + 3430^2 .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 102779 + ... + 103170.

It is an arithmetic number, because the mean of its divisors is an integer number (4565225).

Almost surely, 2^40366004 is an apocalyptic number.

It is an amenable number.

40366004 is an abundant number, since it is smaller than the sum of its proper divisors (41808046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40366004 is a wasteful number, since it uses less digits than its factorization.

40366004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205967 (or 205958 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 40366004 is about 6353.4245883618. The cubic root of 40366004 is about 343.0351206576.

The spelling of 40366004 in words is "forty million, three hundred sixty-six thousand, four".