2186429628 has 24 divisors (see below), whose sum is σ = 5266240000. Its totient is φ = 705299760.

The previous prime is 2186429621. The next prime is 2186429629. The reversal of 2186429628 is 8269246812.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2186429621) 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, 2938378 + ... + 2939121.

Almost surely, 2^2186429628 is an apocalyptic number.

It is an amenable number.

2186429628 is an abundant number, since it is smaller than the sum of its proper divisors (3079810372).

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

2186429628 is a wasteful number, since it uses less digits than its factorization.

2186429628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5877537 (or 5877535 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The square root of 2186429628 is about 46759.2731765583. The cubic root of 2186429628 is about 1297.9117613843.

The spelling of 2186429628 in words is "two billion, one hundred eighty-six million, four hundred twenty-nine thousand, six hundred twenty-eight".