1899372 has 24 divisors (see below), whose sum is σ = 4487616. Its totient is φ = 625168.

The previous prime is 1899371. The next prime is 1899377. The reversal of 1899372 is 2739981.

It is a super-2 number, since 2×1899372² = 7215227988768, which contains 22 as substring.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 1899372.

It is not an unprimeable number, because it can be changed into a prime (1899371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43 + ... + 1949.

It is an arithmetic number, because the mean of its divisors is an integer number (186984).

2^1899372 is an apocalyptic number.

1899372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1899372 is an abundant number, since it is smaller than the sum of its proper divisors (2588244).

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

1899372 is a wasteful number, since it uses less digits than its factorization.

1899372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997 (or 1995 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 1899372 is about 1378.1770568399. The cubic root of 1899372 is about 123.8425855445.

The spelling of 1899372 in words is "one million, eight hundred ninety-nine thousand, three hundred seventy-two".