2147204100 has 72 divisors (see below), whose sum is σ = 6482710080. Its totient is φ = 547690880.

The previous prime is 2147204099. The next prime is 2147204131. The reversal of 2147204100 is 14027412.

It is a happy number.

It is a super-2 number, since 2×2147204100² = 9220970894113620000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148695 + ... + 162494.

It is an arithmetic number, because the mean of its divisors is an integer number (90037640).

Almost surely, 2^2147204100 is an apocalyptic number.

2147204100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2147204100 is an abundant number, since it is smaller than the sum of its proper divisors (4335505980).

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

2147204100 is a wasteful number, since it uses less digits than its factorization.

2147204100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311229 (or 311222 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 2147204100 is about 46337.9337044715. The cubic root of 2147204100 is about 1290.1031706440.

The spelling of 2147204100 in words is "two billion, one hundred forty-seven million, two hundred four thousand, one hundred".