1940544 has 56 divisors (see below), whose sum is σ = 5709920. Its totient is φ = 646272.

The previous prime is 1940537. The next prime is 1940551. The reversal of 1940544 is 4450491.

It is an interprime number because it is at equal distance from previous prime (1940537) and next prime (1940551).

It is a super-2 number, since 2×1940544² = 7531422031872, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1167 + ... + 2289.

2^1940544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1940544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2854960).

1940544 is an abundant number, since it is smaller than the sum of its proper divisors (3769376).

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

1940544 is a wasteful number, since it uses less digits than its factorization.

1940544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144 (or 1128 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1940544 is about 1393.0340986494. The cubic root of 1940544 is about 124.7310269766.

Subtracting from 1940544 its product of nonzero digits (2880), we obtain a square (1937664 = 1392²).

The spelling of 1940544 in words is "one million, nine hundred forty thousand, five hundred forty-four".