2457172 has 6 divisors (see below), whose sum is σ = 4300058. Its totient is φ = 1228584.

The previous prime is 2457139. The next prime is 2457179. The reversal of 2457172 is 2717542.

It can be written as a sum of positive squares in only one way, i.e., 1758276 + 698896 = 1326^2 + 836^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2457172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2457179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307143 + ... + 307150.

2^2457172 is an apocalyptic number.

It is an amenable number.

2457172 is a deficient number, since it is larger than the sum of its proper divisors (1842886).

2457172 is a wasteful number, since it uses less digits than its factorization.

2457172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614297 (or 614295 counting only the distinct ones).

The product of its digits is 3920, while the sum is 28.

The square root of 2457172 is about 1567.5369214153. The cubic root of 2457172 is about 134.9413920269.

The spelling of 2457172 in words is "two million, four hundred fifty-seven thousand, one hundred seventy-two".