19143972 has 48 divisors (see below), whose sum is σ = 52557120. Its totient is φ = 6005376.

The previous prime is 19143961. The next prime is 19143983. The reversal of 19143972 is 27934191.

It is an interprime number because it is at equal distance from previous prime (19143961) and next prime (19143983).

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 15 ways as a sum of consecutive naturals, for example, 3378 + ... + 7049.

It is an arithmetic number, because the mean of its divisors is an integer number (1094940).

Almost surely, 2^19143972 is an apocalyptic number.

19143972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19143972 is an abundant number, since it is smaller than the sum of its proper divisors (33413148).

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

19143972 is a wasteful number, since it uses less digits than its factorization.

19143972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10457 (or 10449 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 19143972 is about 4375.3824975652. The cubic root of 19143972 is about 267.5124610610.

It can be divided in two parts, 1914 and 3972, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 19143972 in words is "nineteen million, one hundred forty-three thousand, nine hundred seventy-two".