1890811148 has 48 divisors (see below), whose sum is σ = 3523559424. Its totient is φ = 886230720.

The previous prime is 1890811147. The next prime is 1890811177. The reversal of 1890811148 is 8411180981.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1890811147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1205861 + ... + 1207427.

It is an arithmetic number, because the mean of its divisors is an integer number (73407488).

Almost surely, 2^1890811148 is an apocalyptic number.

It is an amenable number.

1890811148 is a deficient number, since it is larger than the sum of its proper divisors (1632748276).

1890811148 is a wasteful number, since it uses less digits than its factorization.

1890811148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902 (or 1900 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 41.

The square root of 1890811148 is about 43483.4583261267. The cubic root of 1890811148 is about 1236.5624414874.

The spelling of 1890811148 in words is "one billion, eight hundred ninety million, eight hundred eleven thousand, one hundred forty-eight".