2452720939 has 4 divisors (see below), whose sum is σ = 2456857656. Its totient is φ = 2448584224.

The previous prime is 2452720927. The next prime is 2452720973. The reversal of 2452720939 is 9390272542.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2452720939 - 2²¹ = 2450623787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2452720895 and 2452720904.

It is not an unprimeable number, because it can be changed into a prime (2452721939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2067469 + ... + 2068654.

It is an arithmetic number, because the mean of its divisors is an integer number (614214414).

Almost surely, 2^2452720939 is an apocalyptic number.

2452720939 is a deficient number, since it is larger than the sum of its proper divisors (4136717).

2452720939 is an equidigital number, since it uses as much as digits as its factorization.

2452720939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4136716.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 2452720939 is about 49524.9526905377. The cubic root of 2452720939 is about 1348.5986260932.

The spelling of 2452720939 in words is "two billion, four hundred fifty-two million, seven hundred twenty thousand, nine hundred thirty-nine".