1357020 has 96 divisors (see below), whose sum is σ = 4838400. Its totient is φ = 309312.

The previous prime is 1357009. The next prime is 1357021. The reversal of 1357020 is 207531.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1356984 and 1357002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1357021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3601 + ... + 3959.

It is an arithmetic number, because the mean of its divisors is an integer number (50400).

2^1357020 is an apocalyptic number.

1357020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1357020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2419200).

1357020 is an abundant number, since it is smaller than the sum of its proper divisors (3481380).

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

1357020 is a wasteful number, since it uses less digits than its factorization.

1357020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 1357020 is about 1164.9120138448. The cubic root of 1357020 is about 110.7121834991.

The spelling of 1357020 in words is "one million, three hundred fifty-seven thousand, twenty".