1902664332 has 72 divisors (see below), whose sum is σ = 5148561600. Its totient is φ = 590645088.

The previous prime is 1902664303. The next prime is 1902664367. The reversal of 1902664332 is 2334662091.

1902664332 is a `hidden beast` number, since 1 + 9 + 0 + 2 + 6 + 643 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16783 + ... + 63929.

It is an arithmetic number, because the mean of its divisors is an integer number (71507800).

Almost surely, 2^1902664332 is an apocalyptic number.

1902664332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1902664332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2574280800).

1902664332 is an abundant number, since it is smaller than the sum of its proper divisors (3245897268).

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

1902664332 is a wasteful number, since it uses less digits than its factorization.

1902664332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47235 (or 47230 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 1902664332 is about 43619.5407128502. The cubic root of 1902664332 is about 1239.1409962914.

The spelling of 1902664332 in words is "one billion, nine hundred two million, six hundred sixty-four thousand, three hundred thirty-two".