1239888 has 40 divisors (see below), whose sum is σ = 3451168. Its totient is φ = 381312.

The previous prime is 1239877. The next prime is 1239893. The reversal of 1239888 is 8889321.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 370 + ... + 1617.

2^1239888 is an apocalyptic number.

It is an amenable number.

1239888 is an abundant number, since it is smaller than the sum of its proper divisors (2211280).

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

1239888 is a wasteful number, since it uses less digits than its factorization.

1239888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011 (or 2005 counting only the distinct ones).

The product of its digits is 27648, while the sum is 39.

The square root of 1239888 is about 1113.5025819458. The cubic root of 1239888 is about 107.4304724383.

It can be divided in two parts, 123 and 9888, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 1239888 in words is "one million, two hundred thirty-nine thousand, eight hundred eighty-eight".