1945842 has 32 divisors (see below), whose sum is σ = 4121280. Its totient is φ = 611520.

The previous prime is 1945831. The next prime is 1945843. The reversal of 1945842 is 2485491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1945843) 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, 9117 + ... + 9327.

It is an arithmetic number, because the mean of its divisors is an integer number (128790).

2^1945842 is an apocalyptic number.

1945842 is an abundant number, since it is smaller than the sum of its proper divisors (2175438).

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

1945842 is a wasteful number, since it uses less digits than its factorization.

1945842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298.

The product of its digits is 11520, while the sum is 33.

The square root of 1945842 is about 1394.9344070601. The cubic root of 1945842 is about 124.8444358119.

The spelling of 1945842 in words is "one million, nine hundred forty-five thousand, eight hundred forty-two".