19432212380 has 48 divisors (see below), whose sum is σ = 49091911680. Its totient is φ = 6311815488.

The previous prime is 19432212379. The next prime is 19432212413. The reversal of 19432212380 is 8321223491.

It is a happy number.

It is a super-3 number, since 3×19432212380³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 19432212380.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3650012 + ... + 3655331.

It is an arithmetic number, because the mean of its divisors is an integer number (1022748160).

Almost surely, 2^19432212380 is an apocalyptic number.

19432212380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19432212380 is an abundant number, since it is smaller than the sum of its proper divisors (29659699300).

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

19432212380 is a wasteful number, since it uses less digits than its factorization.

19432212380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7305378 (or 7305376 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 19432212380 in words is "nineteen billion, four hundred thirty-two million, two hundred twelve thousand, three hundred eighty".