2690172 has 90 divisors (see below), whose sum is σ = 7744968. Its totient is φ = 812592.

The previous prime is 2690167. The next prime is 2690173. The reversal of 2690172 is 2710962.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2690173) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 116953 + ... + 116975.

2^2690172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2690172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3872484).

2690172 is an abundant number, since it is smaller than the sum of its proper divisors (5054796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2690172 is a wasteful number, since it uses less digits than its factorization.

2690172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 2690172 is about 1640.1743809730. The cubic root of 2690172 is about 139.0785057620.

The spelling of 2690172 in words is "two million, six hundred ninety thousand, one hundred seventy-two".