1623942 has 64 divisors (see below), whose sum is σ = 4017600. Its totient is φ = 483840.

The previous prime is 1623931. The next prime is 1623943. The reversal of 1623942 is 2493261.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1623943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26592 + ... + 26652.

It is an arithmetic number, because the mean of its divisors is an integer number (62775).

2^1623942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1623942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2008800).

1623942 is an abundant number, since it is smaller than the sum of its proper divisors (2393658).

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

1623942 is a wasteful number, since it uses less digits than its factorization.

1623942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 112 counting only the distinct ones).

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

The square root of 1623942 is about 1274.3398290880. The cubic root of 1623942 is about 117.5412138507.

The spelling of 1623942 in words is "one million, six hundred twenty-three thousand, nine hundred forty-two".