1339740 has 60 divisors (see below), whose sum is σ = 4207896. Its totient is φ = 356832.

The previous prime is 1339729. The next prime is 1339759. The reversal of 1339740 is 479331.

It is a tau number, because it is divible by the number of its divisors (60).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1207 + ... + 2033.

2^1339740 is an apocalyptic number.

1339740 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 1339740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2103948).

1339740 is an abundant number, since it is smaller than the sum of its proper divisors (2868156).

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

1339740 is a wasteful number, since it uses less digits than its factorization.

1339740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1339740 is about 1157.4713819356. The cubic root of 1339740 is about 110.2402462564.

The spelling of 1339740 in words is "one million, three hundred thirty-nine thousand, seven hundred forty".