2431897642 has 8 divisors (see below), whose sum is σ = 3654327456. Its totient is φ = 1213788492.

The previous prime is 2431897619. The next prime is 2431897649. The reversal of 2431897642 is 2467981342.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2431897642² = 11828252282330320328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2431897592 and 2431897601.

It is not an unprimeable number, because it can be changed into a prime (2431897649) 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, 1078758 + ... + 1081009.

It is an arithmetic number, because the mean of its divisors is an integer number (456790932).

Almost surely, 2^2431897642 is an apocalyptic number.

2431897642 is a deficient number, since it is larger than the sum of its proper divisors (1222429814).

2431897642 is a wasteful number, since it uses less digits than its factorization.

2431897642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160332.

The product of its digits is 580608, while the sum is 46.

The square root of 2431897642 is about 49314.2742215679. The cubic root of 2431897642 is about 1344.7712959484.

The spelling of 2431897642 in words is "two billion, four hundred thirty-one million, eight hundred ninety-seven thousand, six hundred forty-two".