2487720 has 32 divisors (see below), whose sum is σ = 7463520. Its totient is φ = 663360.

The previous prime is 2487713. The next prime is 2487739. The reversal of 2487720 is 277842.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 10246 + ... + 10485.

It is an arithmetic number, because the mean of its divisors is an integer number (233235).

2^2487720 is an apocalyptic number.

2487720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2487720 is an abundant number, since it is smaller than the sum of its proper divisors (4975800).

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

2487720 is a wasteful number, since it uses less digits than its factorization.

2487720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20745 (or 20741 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 2487720 is about 1577.2507727055. The cubic root of 2487720 is about 135.4982956626.

The spelling of 2487720 in words is "two million, four hundred eighty-seven thousand, seven hundred twenty".