1356920 has 16 divisors (see below), whose sum is σ = 3053160. Its totient is φ = 542752.

The previous prime is 1356919. The next prime is 1356947. The reversal of 1356920 is 296531.

It is a self number, because there is not a number n which added to its sum of digits gives 1356920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16922 + ... + 17001.

2^1356920 is an apocalyptic number.

1356920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1356920 is an abundant number, since it is smaller than the sum of its proper divisors (1696240).

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

1356920 is a wasteful number, since it uses less digits than its factorization.

1356920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33934 (or 33930 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 1356920 is about 1164.8690913575. The cubic root of 1356920 is about 110.7094639395.

The spelling of 1356920 in words is "one million, three hundred fifty-six thousand, nine hundred twenty".