1890342 has 12 divisors (see below), whose sum is σ = 4095780. Its totient is φ = 630108.

The previous prime is 1890337. The next prime is 1890373. The reversal of 1890342 is 2430981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52492 + ... + 52527.

It is an arithmetic number, because the mean of its divisors is an integer number (341315).

2^1890342 is an apocalyptic number.

1890342 is an abundant number, since it is smaller than the sum of its proper divisors (2205438).

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

1890342 is a wasteful number, since it uses less digits than its factorization.

1890342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105027 (or 105024 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1890342 is about 1374.8970870578. The cubic root of 1890342 is about 123.6460161084.

The spelling of 1890342 in words is "one million, eight hundred ninety thousand, three hundred forty-two".