1339870 has 16 divisors (see below), whose sum is σ = 2756448. Its totient is φ = 459360.

The previous prime is 1339859. The next prime is 1339873. The reversal of 1339870 is 789331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1339873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9501 + ... + 9640.

It is an arithmetic number, because the mean of its divisors is an integer number (172278).

2^1339870 is an apocalyptic number.

1339870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1339870 is an abundant number, since it is smaller than the sum of its proper divisors (1416578).

1339870 is a wasteful number, since it uses less digits than its factorization.

1339870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19155.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1339870 is about 1157.5275374694. The cubic root of 1339870 is about 110.2438118160.

It can be divided in two parts, 1339 and 870, that added together give a square (2209 = 47²).

The spelling of 1339870 in words is "one million, three hundred thirty-nine thousand, eight hundred seventy".