1390960 has 20 divisors (see below), whose sum is σ = 3234168. Its totient is φ = 556352.

The previous prime is 1390937. The next prime is 1390967. The reversal of 1390960 is 690931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8614 + ... + 8773.

2^1390960 is an apocalyptic number.

1390960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1390960 is an abundant number, since it is smaller than the sum of its proper divisors (1843208).

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

1390960 is a wasteful number, since it uses less digits than its factorization.

1390960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17400 (or 17394 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 1390960 is about 1179.3896726697. The cubic root of 1390960 is about 111.6275896040.

The spelling of 1390960 in words is "one million, three hundred ninety thousand, nine hundred sixty".