1371020 has 36 divisors (see below), whose sum is σ = 3351600. Its totient is φ = 469728.

The previous prime is 1371017. The next prime is 1371031. The reversal of 1371020 is 201731.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1370986 and 1371004.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 281 + ... + 1679.

It is an arithmetic number, because the mean of its divisors is an integer number (93100).

2^1371020 is an apocalyptic number.

1371020 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 1371020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1675800).

1371020 is an abundant number, since it is smaller than the sum of its proper divisors (1980580).

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

1371020 is a wasteful number, since it uses less digits than its factorization.

1371020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422 (or 1413 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 1371020 is about 1170.9056324060. The cubic root of 1371020 is about 111.0916106519.

Adding to 1371020 its reverse (201731), we get a palindrome (1572751).

The spelling of 1371020 in words is "one million, three hundred seventy-one thousand, twenty".