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1492220 = 22574611
BaseRepresentation
bin101101100010011111100
32210210221102
411230103330
5340222340
651552232
715453332
oct5542374
92723842
101492220
1192a144
125bb678
13403292
142abb52
151e7215
hex16c4fc

1492220 has 12 divisors (see below), whose sum is σ = 3133704. Its totient is φ = 596880.

The previous prime is 1492219. The next prime is 1492223. The reversal of 1492220 is 222941.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 74611 = 1492220 / (1 + 4 + 9 + 2 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 1492192 and 1492201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1492223) 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, 37286 + ... + 37325.

It is an arithmetic number, because the mean of its divisors is an integer number (261142).

21492220 is an apocalyptic number.

1492220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1492220 is an abundant number, since it is smaller than the sum of its proper divisors (1641484).

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

1492220 is a wasteful number, since it uses less digits than its factorization.

1492220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74620 (or 74618 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1492220 is about 1221.5645705406. The cubic root of 1492220 is about 114.2731727309.

The spelling of 1492220 in words is "one million, four hundred ninety-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 74611 149222 298444 373055 746110 1492220