1879440 has 80 divisors (see below), whose sum is σ = 5999616. Its totient is φ = 486400.

The previous prime is 1879439. The next prime is 1879453. The reversal of 1879440 is 449781.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9745 + ... + 9935.

2^1879440 is an apocalyptic number.

1879440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1879440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2999808).

1879440 is an abundant number, since it is smaller than the sum of its proper divisors (4120176).

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

1879440 is a wasteful number, since it uses less digits than its factorization.

1879440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1879440 is about 1370.9266938826. The cubic root of 1879440 is about 123.4078601590.

The spelling of 1879440 in words is "one million, eight hundred seventy-nine thousand, four hundred forty".