2517930 has 48 divisors (see below), whose sum is σ = 6635304. Its totient is φ = 662400.

The previous prime is 2517929. The next prime is 2517941. The reversal of 2517930 is 397152.

It can be written as a sum of positive squares in 4 ways, for example, as 2223081 + 294849 = 1491^2 + 543^2 .

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2517894 and 2517903.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8952 + ... + 9228.

2^2517930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2517930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3317652).

2517930 is an abundant number, since it is smaller than the sum of its proper divisors (4117374).

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

2517930 is a wasteful number, since it uses less digits than its factorization.

2517930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 2517930 is about 1586.7986639773. The cubic root of 2517930 is about 136.0445716077.

It can be divided in two parts, 25 and 17930, that added together give a triangular number (17955 = T₁₈₉).

The spelling of 2517930 in words is "two million, five hundred seventeen thousand, nine hundred thirty".