2520072 has 40 divisors (see below), whose sum is σ = 7060350. Its totient is φ = 839808.

The previous prime is 2520031. The next prime is 2520073. The reversal of 2520072 is 2700252.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1920996 + 599076 = 1386^2 + 774^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2520073) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1297 + ... + 2592.

2^2520072 is an apocalyptic number.

It is an amenable number.

2520072 is an abundant number, since it is smaller than the sum of its proper divisors (4540278).

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

2520072 is a wasteful number, since it uses less digits than its factorization.

2520072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3907 (or 3894 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 2520072 is about 1587.4734643452. The cubic root of 2520072 is about 136.0831383243.

The spelling of 2520072 in words is "two million, five hundred twenty thousand, seventy-two".