40162004 has 6 divisors (see below), whose sum is σ = 70283514. Its totient is φ = 20081000.

The previous prime is 40161971. The next prime is 40162021. The reversal of 40162004 is 40026104.

It can be written as a sum of positive squares in only one way, i.e., 35760400 + 4401604 = 5980^2 + 2098^2 .

It is a super-2 number, since 2×40162004² = 3225973130592032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5020247 + ... + 5020254.

It is an arithmetic number, because the mean of its divisors is an integer number (11713919).

Almost surely, 2^40162004 is an apocalyptic number.

It is an amenable number.

40162004 is a deficient number, since it is larger than the sum of its proper divisors (30121510).

40162004 is a wasteful number, since it uses less digits than its factorization.

40162004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10040505 (or 10040503 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 40162004 is about 6337.3499193275. The cubic root of 40162004 is about 342.4562723225.

Adding to 40162004 its reverse (40026104), we get a palindrome (80188108).

The spelling of 40162004 in words is "forty million, one hundred sixty-two thousand, four".