1923642 has 48 divisors (see below), whose sum is σ = 4979520. Its totient is φ = 548856.

The previous prime is 1923613. The next prime is 1923653. The reversal of 1923642 is 2463291.

1923642 is a `hidden beast` number, since 19 + 2 + 3 + 642 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2283 + ... + 3009.

It is an arithmetic number, because the mean of its divisors is an integer number (103740).

2^1923642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1923642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2489760).

1923642 is an abundant number, since it is smaller than the sum of its proper divisors (3055878).

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

1923642 is a wasteful number, since it uses less digits than its factorization.

1923642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 739 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 1923642 is about 1386.9542169805. The cubic root of 1923642 is about 124.3678376893.

The spelling of 1923642 in words is "one million, nine hundred twenty-three thousand, six hundred forty-two".