2149416728 has 32 divisors (see below), whose sum is σ = 4209267600. Its totient is φ = 1027930752.

The previous prime is 2149416727. The next prime is 2149416733. The reversal of 2149416728 is 8276149412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149416727) 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, 44075 + ... + 79002.

Almost surely, 2^2149416728 is an apocalyptic number.

It is an amenable number.

2149416728 is a deficient number, since it is larger than the sum of its proper divisors (2059850872).

2149416728 is a wasteful number, since it uses less digits than its factorization.

2149416728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123179 (or 123175 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 2149416728 is about 46361.8024671173. The cubic root of 2149416728 is about 1290.5461557738.

The spelling of 2149416728 in words is "two billion, one hundred forty-nine million, four hundred sixteen thousand, seven hundred twenty-eight".