2391885490 has 64 divisors (see below), whose sum is σ = 4733251200. Its totient is φ = 866750976.

The previous prime is 2391885473. The next prime is 2391885491. The reversal of 2391885490 is 945881932.

2391885490 is nontrivially palindromic in base 4.

It is a super-2 number, since 2×2391885490² = 11442232394545080200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2391885491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 587542 + ... + 591598.

It is an arithmetic number, because the mean of its divisors is an integer number (73957050).

Almost surely, 2^2391885490 is an apocalyptic number.

2391885490 is a deficient number, since it is larger than the sum of its proper divisors (2341365710).

2391885490 is a wasteful number, since it uses less digits than its factorization.

2391885490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4219.

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 2391885490 is about 48906.9063630077. The cubic root of 2391885490 is about 1337.3552740599.

The spelling of 2391885490 in words is "two billion, three hundred ninety-one million, eight hundred eighty-five thousand, four hundred ninety".