1370423 has 4 divisors (see below), whose sum is σ = 1373328. Its totient is φ = 1367520.

The previous prime is 1370407. The next prime is 1370431. The reversal of 1370423 is 3240731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3240731 = 13 ⋅249287.

It is a cyclic number.

It is not a de Polignac number, because 1370423 - 2⁴ = 1370407 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1370395 and 1370404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1370483) 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, 563 + ... + 1748.

It is an arithmetic number, because the mean of its divisors is an integer number (343332).

2^1370423 is an apocalyptic number.

1370423 is a deficient number, since it is larger than the sum of its proper divisors (2905).

1370423 is an equidigital number, since it uses as much as digits as its factorization.

1370423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 1370423 is about 1170.6506737708. The cubic root of 1370423 is about 111.0754836515.

The spelling of 1370423 in words is "one million, three hundred seventy thousand, four hundred twenty-three".