2502740 has 36 divisors (see below), whose sum is σ = 5595996. Its totient is φ = 940032.

The previous prime is 2502733. The next prime is 2502761. The reversal of 2502740 is 472052.

It can be written as a sum of positive squares in 6 ways, for example, as 16 + 2502724 = 4^2 + 1582^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5564 + ... + 5996.

2^2502740 is an apocalyptic number.

2502740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2502740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2797998).

2502740 is an abundant number, since it is smaller than the sum of its proper divisors (3093256).

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

2502740 is a wasteful number, since it uses less digits than its factorization.

2502740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 2502740 is about 1582.0050568819. The cubic root of 2502740 is about 135.7704460881.

Adding to 2502740 its reverse (472052), we get a palindrome (2974792).

The spelling of 2502740 in words is "two million, five hundred two thousand, seven hundred forty".