1919473032 has 16 divisors (see below), whose sum is σ = 4798682640. Its totient is φ = 639824336.

The previous prime is 1919473021. The next prime is 1919473037. The reversal of 1919473032 is 2303749191.

It is not an unprimeable number, because it can be changed into a prime (1919473037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39988998 + ... + 39989045.

It is an arithmetic number, because the mean of its divisors is an integer number (299917665).

Almost surely, 2^1919473032 is an apocalyptic number.

1919473032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1919473032 is an abundant number, since it is smaller than the sum of its proper divisors (2879209608).

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

1919473032 is a wasteful number, since it uses less digits than its factorization.

1919473032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79978052 (or 79978048 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 1919473032 is about 43811.7910156615. The cubic root of 1919473032 is about 1242.7792828034.

The spelling of 1919473032 in words is "one billion, nine hundred nineteen million, four hundred seventy-three thousand, thirty-two".