2427720 has 32 divisors (see below), whose sum is σ = 7283520. Its totient is φ = 647360.

The previous prime is 2427713. The next prime is 2427721. The reversal of 2427720 is 277242.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2427721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9996 + ... + 10235.

It is an arithmetic number, because the mean of its divisors is an integer number (227610).

2^2427720 is an apocalyptic number.

2427720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2427720 is an abundant number, since it is smaller than the sum of its proper divisors (4855800).

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

2427720 is a wasteful number, since it uses less digits than its factorization.

2427720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20245 (or 20241 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 2427720 is about 1558.1142448486. The cubic root of 2427720 is about 134.4000814909.

The spelling of 2427720 in words is "two million, four hundred twenty-seven thousand, seven hundred twenty".