2100454018 has 12 divisors (see below), whose sum is σ = 3411684738. Its totient is φ = 969440160.

The previous prime is 2100454003. The next prime is 2100454019. The reversal of 2100454018 is 8104540012.

It can be written as a sum of positive squares in 3 ways, for example, as 1317181849 + 783272169 = 36293^2 + 27987^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2100453983 and 2100454001.

It is not an unprimeable number, because it can be changed into a prime (2100454019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3106843 + ... + 3107518.

Almost surely, 2^2100454018 is an apocalyptic number.

2100454018 is a deficient number, since it is larger than the sum of its proper divisors (1311230720).

2100454018 is a wasteful number, since it uses less digits than its factorization.

2100454018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6214389 (or 6214376 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 2100454018 is about 45830.7104243432. The cubic root of 2100454018 is about 1280.6714450028.

The spelling of 2100454018 in words is "two billion, one hundred million, four hundred fifty-four thousand, eighteen".