1840227340 has 72 divisors (see below), whose sum is σ = 4512306960. Its totient is φ = 628564608.

The previous prime is 1840227329. The next prime is 1840227353. The reversal of 1840227340 is 437220481.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 268071 + ... + 274849.

It is an arithmetic number, because the mean of its divisors is an integer number (62670930).

Almost surely, 2^1840227340 is an apocalyptic number.

1840227340 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 1840227340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2256153480).

1840227340 is an abundant number, since it is smaller than the sum of its proper divisors (2672079620).

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

1840227340 is a wasteful number, since it uses less digits than its factorization.

1840227340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7079 (or 7070 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 1840227340 is about 42897.8710427452. The cubic root of 1840227340 is about 1225.4356001877.

The spelling of 1840227340 in words is "one billion, eight hundred forty million, two hundred twenty-seven thousand, three hundred forty".