2391902444 has 48 divisors (see below), whose sum is σ = 4419285696. Its totient is φ = 1131264000.

The previous prime is 2391902399. The next prime is 2391902449. The reversal of 2391902444 is 4442091932.

It is a super-2 number, since 2×2391902444² = 11442394603226346272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2391902398 and 2391902407.

It is not an unprimeable number, because it can be changed into a prime (2391902449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2432777 + ... + 2433759.

It is an arithmetic number, because the mean of its divisors is an integer number (92068452).

Almost surely, 2^2391902444 is an apocalyptic number.

It is an amenable number.

2391902444 is a deficient number, since it is larger than the sum of its proper divisors (2027383252).

2391902444 is a wasteful number, since it uses less digits than its factorization.

2391902444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466 (or 1464 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 2391902444 is about 48907.0796920037. The cubic root of 2391902444 is about 1337.3584338360.

The spelling of 2391902444 in words is "two billion, three hundred ninety-one million, nine hundred two thousand, four hundred forty-four".