2100397758 has 32 divisors (see below), whose sum is σ = 4362923520. Its totient is φ = 673616640.

The previous prime is 2100397681. The next prime is 2100397763. The reversal of 2100397758 is 8577930012.

It is a super-2 number, since 2×2100397758² = 8823341483622853128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46483 + ... + 79758.

It is an arithmetic number, because the mean of its divisors is an integer number (136341360).

Almost surely, 2^2100397758 is an apocalyptic number.

2100397758 is an abundant number, since it is smaller than the sum of its proper divisors (2262525762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2100397758 is a wasteful number, since it uses less digits than its factorization.

2100397758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126352.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 2100397758 is about 45830.0966396537. The cubic root of 2100397758 is about 1280.6600107735.

The spelling of 2100397758 in words is "two billion, one hundred million, three hundred ninety-seven thousand, seven hundred fifty-eight".