1392670 has 8 divisors (see below), whose sum is σ = 2506824. Its totient is φ = 557064.

The previous prime is 1392649. The next prime is 1392679. The reversal of 1392670 is 762931.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392679) 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, 69624 + ... + 69643.

It is an arithmetic number, because the mean of its divisors is an integer number (313353).

2^1392670 is an apocalyptic number.

1392670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1392670 is a deficient number, since it is larger than the sum of its proper divisors (1114154).

1392670 is a wasteful number, since it uses less digits than its factorization.

1392670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139274.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 1392670 is about 1180.1144012340. The cubic root of 1392670 is about 111.6733146212.

It can be divided in two parts, 139 and 2670, that added together give a square (2809 = 53²).

The spelling of 1392670 in words is "one million, three hundred ninety-two thousand, six hundred seventy".