2189552974 has 16 divisors (see below), whose sum is σ = 3761238528. Its totient is φ = 936450072.

The previous prime is 2189552969. The next prime is 2189552999. The reversal of 2189552974 is 4792559812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153754 + ... + 167389.

It is an arithmetic number, because the mean of its divisors is an integer number (235077408).

Almost surely, 2^2189552974 is an apocalyptic number.

2189552974 is a deficient number, since it is larger than the sum of its proper divisors (1571685554).

2189552974 is a wasteful number, since it uses less digits than its factorization.

2189552974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321639.

The product of its digits is 1814400, while the sum is 52.

The square root of 2189552974 is about 46792.6594029448. The cubic root of 2189552974 is about 1298.5294958359.

The spelling of 2189552974 in words is "two billion, one hundred eighty-nine million, five hundred fifty-two thousand, nine hundred seventy-four".