1370920 has 16 divisors (see below), whose sum is σ = 3084660. Its totient is φ = 548352.

The previous prime is 1370909. The next prime is 1370921. The reversal of 1370920 is 290731.

It can be written as a sum of positive squares in 2 ways, for example, as 1331716 + 39204 = 1154^2 + 198^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1370891 and 1370900.

It is not an unprimeable number, because it can be changed into a prime (1370921) 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, 17097 + ... + 17176.

2^1370920 is an apocalyptic number.

1370920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1370920 is an abundant number, since it is smaller than the sum of its proper divisors (1713740).

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

1370920 is a wasteful number, since it uses less digits than its factorization.

1370920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34284 (or 34280 counting only the distinct ones).

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

The square root of 1370920 is about 1170.8629296378. The cubic root of 1370920 is about 111.0889096382.

The spelling of 1370920 in words is "one million, three hundred seventy thousand, nine hundred twenty".