2188472924 has 24 divisors (see below), whose sum is σ = 4181683968. Its totient is φ = 993881840.

The previous prime is 2188472911. The next prime is 2188472927. The reversal of 2188472924 is 4292748812.

It is a super-2 number, since 2×2188472924² = 9578827478162219552, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2188472927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29789 + ... + 72555.

It is an arithmetic number, because the mean of its divisors is an integer number (174236832).

Almost surely, 2^2188472924 is an apocalyptic number.

It is an amenable number.

2188472924 is a deficient number, since it is larger than the sum of its proper divisors (1993211044).

2188472924 is a wasteful number, since it uses less digits than its factorization.

2188472924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43945 (or 43943 counting only the distinct ones).

The product of its digits is 516096, while the sum is 47.

The square root of 2188472924 is about 46781.1171734921. The cubic root of 2188472924 is about 1298.3159503522.

The spelling of 2188472924 in words is "two billion, one hundred eighty-eight million, four hundred seventy-two thousand, nine hundred twenty-four".