2409661972 has 24 divisors (see below), whose sum is σ = 4289077800. Its totient is φ = 1184378880.

The previous prime is 2409661951. The next prime is 2409661973. The reversal of 2409661972 is 2791669042.

It can be written as a sum of positive squares in 4 ways, for example, as 267453316 + 2142208656 = 16354^2 + 46284^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2409661973) 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, 36972 + ... + 78652.

It is an arithmetic number, because the mean of its divisors is an integer number (178711575).

Almost surely, 2^2409661972 is an apocalyptic number.

It is an amenable number.

2409661972 is a deficient number, since it is larger than the sum of its proper divisors (1879415828).

2409661972 is a wasteful number, since it uses less digits than its factorization.

2409661972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41931 (or 41929 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 2409661972 is about 49088.3078950579. The cubic root of 2409661972 is about 1340.6601729566.

It can be divided in two parts, 24096 and 61972, that added together give a palindrome (86068).

The spelling of 2409661972 in words is "two billion, four hundred nine million, six hundred sixty-one thousand, nine hundred seventy-two".