40179830 has 32 divisors (see below), whose sum is σ = 75302784. Its totient is φ = 15423616.

The previous prime is 40179791. The next prime is 40179859. The reversal of 40179830 is 3897104.

It is a super-2 number, since 2×40179830² = 3228837477657800, 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 in 15 ways as a sum of consecutive naturals, for example, 24104 + ... + 25716.

It is an arithmetic number, because the mean of its divisors is an integer number (2353212).

Almost surely, 2^40179830 is an apocalyptic number.

40179830 is a deficient number, since it is larger than the sum of its proper divisors (35122954).

40179830 is a wasteful number, since it uses less digits than its factorization.

40179830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 40179830 is about 6338.7561871396. The cubic root of 40179830 is about 342.5069315023.

The spelling of 40179830 in words is "forty million, one hundred seventy-nine thousand, eight hundred thirty".