1845120924 has 192 divisors, whose sum is σ = 5099673600. Its totient is φ = 576288000.

The previous prime is 1845120887. The next prime is 1845120997. The reversal of 1845120924 is 4290215481.

It is a super-2 number, since 2×1845120924² = 6808942448365227552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18268474 + ... + 18268574.

It is an arithmetic number, because the mean of its divisors is an integer number (26560800).

Almost surely, 2^1845120924 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1845120924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2549836800).

1845120924 is an abundant number, since it is smaller than the sum of its proper divisors (3254552676).

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

1845120924 is a wasteful number, since it uses less digits than its factorization.

1845120924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1845120924 is about 42954.8707831836. The cubic root of 1845120924 is about 1226.5208762947.

The spelling of 1845120924 in words is "one billion, eight hundred forty-five million, one hundred twenty thousand, nine hundred twenty-four".