45192240 has 120 divisors (see below), whose sum is σ = 158427360. Its totient is φ = 11523072.

The previous prime is 45192233. The next prime is 45192253. The reversal of 45192240 is 4229154.

It is a tau number, because it is divible by the number of its divisors (120).

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, 15196 + ... + 17924.

It is an arithmetic number, because the mean of its divisors is an integer number (1320228).

Almost surely, 2^45192240 is an apocalyptic number.

45192240 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 45192240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79213680).

45192240 is an abundant number, since it is smaller than the sum of its proper divisors (113235120).

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

45192240 is a wasteful number, since it uses less digits than its factorization.

45192240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771 (or 2762 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 45192240 is about 6722.5173856227. The cubic root of 45192240 is about 356.1951125042.

The spelling of 45192240 in words is "forty-five million, one hundred ninety-two thousand, two hundred forty".