1899948 has 12 divisors (see below), whose sum is σ = 4433240. Its totient is φ = 633312.

The previous prime is 1899929. The next prime is 1899949. The reversal of 1899948 is 8499981.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 1899897 and 1899906.

It is not an unprimeable number, because it can be changed into a prime (1899949) 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, 79153 + ... + 79176.

2^1899948 is an apocalyptic number.

It is an amenable number.

1899948 is an abundant number, since it is smaller than the sum of its proper divisors (2533292).

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

1899948 is a wasteful number, since it uses less digits than its factorization.

1899948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158336 (or 158334 counting only the distinct ones).

The product of its digits is 186624, while the sum is 48.

The square root of 1899948 is about 1378.3860126975. The cubic root of 1899948 is about 123.8551030362.

The spelling of 1899948 in words is "one million, eight hundred ninety-nine thousand, nine hundred forty-eight".