1820874332 has 24 divisors (see below), whose sum is σ = 3234532896. Its totient is φ = 896755968.

The previous prime is 1820874331. The next prime is 1820874337. The reversal of 1820874332 is 2334780281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1820874331) 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, 236528 + ... + 244104.

It is an arithmetic number, because the mean of its divisors is an integer number (134772204).

Almost surely, 2^1820874332 is an apocalyptic number.

It is an amenable number.

1820874332 is a deficient number, since it is larger than the sum of its proper divisors (1413658564).

1820874332 is a wasteful number, since it uses less digits than its factorization.

1820874332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8477 (or 8475 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 1820874332 is about 42671.7041140848. The cubic root of 1820874332 is about 1221.1246307959.

The spelling of 1820874332 in words is "one billion, eight hundred twenty million, eight hundred seventy-four thousand, three hundred thirty-two".