1239880 has 32 divisors (see below), whose sum is σ = 2822400. Its totient is φ = 490176.

The previous prime is 1239877. The next prime is 1239893. The reversal of 1239880 is 889321.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

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, 5449 + ... + 5671.

It is an arithmetic number, because the mean of its divisors is an integer number (88200).

2^1239880 is an apocalyptic number.

1239880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1239880 is an abundant number, since it is smaller than the sum of its proper divisors (1582520).

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

1239880 is a wasteful number, since it uses less digits than its factorization.

1239880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1239880 is about 1113.4989896717. The cubic root of 1239880 is about 107.4302413836.

The spelling of 1239880 in words is "one million, two hundred thirty-nine thousand, eight hundred eighty".