1921850832 has 40 divisors (see below), whose sum is σ = 5416126560. Its totient is φ = 582378880.

The previous prime is 1921850809. The next prime is 1921850849. The reversal of 1921850832 is 2380581291.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1819407 + ... + 1820462.

It is an arithmetic number, because the mean of its divisors is an integer number (135403164).

Almost surely, 2^1921850832 is an apocalyptic number.

1921850832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1921850832 is an abundant number, since it is smaller than the sum of its proper divisors (3494275728).

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

1921850832 is a wasteful number, since it uses less digits than its factorization.

1921850832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3639891 (or 3639885 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 1921850832 is about 43838.9191472600. The cubic root of 1921850832 is about 1243.2922467158.

The spelling of 1921850832 in words is "one billion, nine hundred twenty-one million, eight hundred fifty thousand, eight hundred thirty-two".