2919172 has 12 divisors (see below), whose sum is σ = 5409180. Its totient is φ = 1373696.

The previous prime is 2919157. The next prime is 2919199. The reversal of 2919172 is 2719192.

It can be written as a sum of positive squares in 2 ways, for example, as 799236 + 2119936 = 894^2 + 1456^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21397 + ... + 21532.

It is an arithmetic number, because the mean of its divisors is an integer number (450765).

2^2919172 is an apocalyptic number.

It is an amenable number.

2919172 is a deficient number, since it is larger than the sum of its proper divisors (2490008).

2919172 is a wasteful number, since it uses less digits than its factorization.

2919172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42950 (or 42948 counting only the distinct ones).

The product of its digits is 2268, while the sum is 31.

The square root of 2919172 is about 1708.5584567114. The cubic root of 2919172 is about 142.9178787458.

The spelling of 2919172 in words is "two million, nine hundred nineteen thousand, one hundred seventy-two".