1092420 has 144 divisors (see below), whose sum is σ = 4126080. Its totient is φ = 235008.

The previous prime is 1092419. The next prime is 1092433. The reversal of 1092420 is 242901.

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 = 1092393 and 1092402.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64252 + ... + 64268.

2^1092420 is an apocalyptic number.

1092420 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 1092420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2063040).

1092420 is an abundant number, since it is smaller than the sum of its proper divisors (3033660).

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

1092420 is a wasteful number, since it uses less digits than its factorization.

1092420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1092420 is about 1045.1889781279. The cubic root of 1092420 is about 102.9903531984.

The spelling of 1092420 in words is "one million, ninety-two thousand, four hundred twenty".