1578880 has 32 divisors (see below), whose sum is σ = 3776040. Its totient is φ = 631296.

The previous prime is 1578877. The next prime is 1578883. The reversal of 1578880 is 888751.

It is an interprime number because it is at equal distance from previous prime (1578877) and next prime (1578883).

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1578883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594 + ... + 1873.

2^1578880 is an apocalyptic number.

1578880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1578880 is an abundant number, since it is smaller than the sum of its proper divisors (2197160).

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

1578880 is an equidigital number, since it uses as much as digits as its factorization.

1578880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486 (or 2474 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 37.

The square root of 1578880 is about 1256.5349179390. The cubic root of 1578880 is about 116.4438012944.

The spelling of 1578880 in words is "one million, five hundred seventy-eight thousand, eight hundred eighty".