2420872 has 8 divisors (see below), whose sum is σ = 4539150. Its totient is φ = 1210432.

The previous prime is 2420867. The next prime is 2420879. The reversal of 2420872 is 2780242.

It can be written as a sum of positive squares in only one way, i.e., 1758276 + 662596 = 1326^2 + 814^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2420879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151297 + ... + 151312.

2^2420872 is an apocalyptic number.

It is an amenable number.

2420872 is a deficient number, since it is larger than the sum of its proper divisors (2118278).

2420872 is a wasteful number, since it uses less digits than its factorization.

2420872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302615 (or 302611 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 2420872 is about 1555.9151647825. The cubic root of 2420872 is about 134.2735926457.

The spelling of 2420872 in words is "two million, four hundred twenty thousand, eight hundred seventy-two".