2542520 has 32 divisors (see below), whose sum is σ = 6058800. Its totient is φ = 956928.

The previous prime is 2542513. The next prime is 2542531. The reversal of 2542520 is 252452.

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

It is a junction number, because it is equal to n+sod(n) for n = 2542492 and 2542501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1190 + ... + 2549.

2^2542520 is an apocalyptic number.

2542520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2542520 is an abundant number, since it is smaller than the sum of its proper divisors (3516280).

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

2542520 is a wasteful number, since it uses less digits than its factorization.

2542520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3767 (or 3763 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 2542520 is about 1594.5281433703. The cubic root of 2542520 is about 136.4860062492.

Adding to 2542520 its reverse (252452), we get a palindrome (2794972).

The spelling of 2542520 in words is "two million, five hundred forty-two thousand, five hundred twenty".