1864730028 has 48 divisors (see below), whose sum is σ = 4985818880. Its totient is φ = 531365184.

The previous prime is 1864730027. The next prime is 1864730039. The reversal of 1864730028 is 8200374681.

It is not an unprimeable number, because it can be changed into a prime (1864730027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2550 + ... + 61122.

Almost surely, 2^1864730028 is an apocalyptic number.

It is an amenable number.

1864730028 is an abundant number, since it is smaller than the sum of its proper divisors (3121088852).

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

1864730028 is a wasteful number, since it uses less digits than its factorization.

1864730028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58966 (or 58964 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 1864730028 is about 43182.5199357333. The cubic root of 1864730028 is about 1230.8505426564.

The spelling of 1864730028 in words is "one billion, eight hundred sixty-four million, seven hundred thirty thousand, twenty-eight".