45098280 has 96 divisors (see below), whose sum is σ = 155212200. Its totient is φ = 11317248.

The previous prime is 45098269. The next prime is 45098293. The reversal of 45098280 is 8289054.

It can be written as a sum of positive squares in 4 ways, for example, as 44916804 + 181476 = 6702^2 + 426^2 .

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 23 ways as a sum of consecutive naturals, for example, 2436 + ... + 9804.

Almost surely, 2^45098280 is an apocalyptic number.

45098280 is a gapful number since it is divisible by the number (40) 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 45098280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77606100).

45098280 is an abundant number, since it is smaller than the sum of its proper divisors (110113920).

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

45098280 is a wasteful number, since it uses less digits than its factorization.

45098280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7403 (or 7396 counting only the distinct ones).

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

The square root of 45098280 is about 6715.5252959095. The cubic root of 45098280 is about 355.9480840003.

The spelling of 45098280 in words is "forty-five million, ninety-eight thousand, two hundred eighty".