1120411845 has 80 divisors (see below), whose sum is σ = 2306798208. Its totient is φ = 509639040.

The previous prime is 1120411777. The next prime is 1120411861. The reversal of 1120411845 is 5481140211.

It is a happy number.

It is not a de Polignac number, because 1120411845 - 2¹⁰ = 1120410821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 642675 + ... + 644415.

Almost surely, 2^1120411845 is an apocalyptic number.

1120411845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1120411845 is an abundant number, since it is smaller than the sum of its proper divisors (1186386363).

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

1120411845 is a wasteful number, since it uses less digits than its factorization.

1120411845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992 (or 1983 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 1120411845 is about 33472.5536073960. The cubic root of 1120411845 is about 1038.6260966002.

The spelling of 1120411845 in words is "one billion, one hundred twenty million, four hundred eleven thousand, eight hundred forty-five".