2127491400 has 48 divisors (see below), whose sum is σ = 6595225200. Its totient is φ = 567330880.

The previous prime is 2127491383. The next prime is 2127491413. The reversal of 2127491400 is 41947212.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1772310 + ... + 1773509.

It is an arithmetic number, because the mean of its divisors is an integer number (137400525).

Almost surely, 2^2127491400 is an apocalyptic number.

2127491400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2127491400 is an abundant number, since it is smaller than the sum of its proper divisors (4467733800).

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

2127491400 is a wasteful number, since it uses less digits than its factorization.

2127491400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3545838 (or 3545829 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 2127491400 is about 46124.7373976264. The cubic root of 2127491400 is about 1286.1430376063.

The spelling of 2127491400 in words is "two billion, one hundred twenty-seven million, four hundred ninety-one thousand, four hundred".