1890520412 has 12 divisors (see below), whose sum is σ = 3609175416. Its totient is φ = 859327440.

The previous prime is 1890520409. The next prime is 1890520417. The reversal of 1890520412 is 2140250981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1890520417) 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, 21483143 + ... + 21483230.

It is an arithmetic number, because the mean of its divisors is an integer number (300764618).

Almost surely, 2^1890520412 is an apocalyptic number.

It is an amenable number.

1890520412 is a deficient number, since it is larger than the sum of its proper divisors (1718655004).

1890520412 is a wasteful number, since it uses less digits than its factorization.

1890520412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42966388 (or 42966386 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 1890520412 is about 43480.1151332422. The cubic root of 1890520412 is about 1236.4990592284.

The spelling of 1890520412 in words is "one billion, eight hundred ninety million, five hundred twenty thousand, four hundred twelve".