1899492 has 24 divisors (see below), whose sum is σ = 5065536. Its totient is φ = 542688.

The previous prime is 1899481. The next prime is 1899497. The reversal of 1899492 is 2949981.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1899497) 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, 11223 + ... + 11390.

It is an arithmetic number, because the mean of its divisors is an integer number (211064).

2^1899492 is an apocalyptic number.

1899492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1899492 is an abundant number, since it is smaller than the sum of its proper divisors (3166044).

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

1899492 is a wasteful number, since it uses less digits than its factorization.

1899492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22627 (or 22625 counting only the distinct ones).

The product of its digits is 46656, while the sum is 42.

The square root of 1899492 is about 1378.2205919228. The cubic root of 1899492 is about 123.8451935639.

The spelling of 1899492 in words is "one million, eight hundred ninety-nine thousand, four hundred ninety-two".