40319404 has 6 divisors (see below), whose sum is σ = 70558964. Its totient is φ = 20159700.

The previous prime is 40319401. The next prime is 40319407. The reversal of 40319404 is 40491304.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40319401) and next prime (40319407).

It is not an unprimeable number, because it can be changed into a prime (40319401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5039922 + ... + 5039929.

Almost surely, 2^40319404 is an apocalyptic number.

It is an amenable number.

40319404 is a deficient number, since it is larger than the sum of its proper divisors (30239560).

40319404 is a wasteful number, since it uses less digits than its factorization.

40319404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10079855 (or 10079853 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 40319404 is about 6349.7562157929. The cubic root of 40319404 is about 342.9030657072.

The spelling of 40319404 in words is "forty million, three hundred nineteen thousand, four hundred four".