1390207 has 8 divisors (see below), whose sum is σ = 1711136. Its totient is φ = 1099872.

The previous prime is 1390199. The next prime is 1390219. The reversal of 1390207 is 7020931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1390207 - 2³ = 1390199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390247) 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, 7548 + ... + 7729.

It is an arithmetic number, because the mean of its divisors is an integer number (213892).

2^1390207 is an apocalyptic number.

1390207 is a deficient number, since it is larger than the sum of its proper divisors (320929).

1390207 is a wasteful number, since it uses less digits than its factorization.

1390207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15297.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 1390207 is about 1179.0703965413. The cubic root of 1390207 is about 111.6074426677.

The spelling of 1390207 in words is "one million, three hundred ninety thousand, two hundred seven".