40002179 has 12 divisors (see below), whose sum is σ = 46854000. Its totient is φ = 34051248.

The previous prime is 40002133. The next prime is 40002191. The reversal of 40002179 is 97120004.

It is a de Polignac number, because none of the positive numbers 2^k-40002179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40002199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4562 + ... + 10040.

It is an arithmetic number, because the mean of its divisors is an integer number (3904500).

Almost surely, 2^40002179 is an apocalyptic number.

40002179 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

40002179 is a deficient number, since it is larger than the sum of its proper divisors (6851821).

40002179 is a wasteful number, since it uses less digits than its factorization.

40002179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5642 (or 5635 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 40002179 is about 6324.7275830663. The cubic root of 40002179 is about 342.0013992852.

The spelling of 40002179 in words is "forty million, two thousand, one hundred seventy-nine".