45191850 has 96 divisors (see below), whose sum is σ = 124545600. Its totient is φ = 10752000.

The previous prime is 45191833. The next prime is 45191851. The reversal of 45191850 is 5819154.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (45191851) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 100426 + ... + 100874.

It is an arithmetic number, because the mean of its divisors is an integer number (1297350).

Almost surely, 2^45191850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45191850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62272800).

45191850 is an abundant number, since it is smaller than the sum of its proper divisors (79353750).

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

45191850 is a wasteful number, since it uses less digits than its factorization.

45191850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 45191850 is about 6722.4883785694. The cubic root of 45191850 is about 356.1940878704.

The spelling of 45191850 in words is "forty-five million, one hundred ninety-one thousand, eight hundred fifty".