45443550 has 96 divisors (see below), whose sum is σ = 121492224. Its totient is φ = 11200000.

The previous prime is 45443543. The next prime is 45443557. The reversal of 45443550 is 5534454.

It is an interprime number because it is at equal distance from previous prime (45443543) and next prime (45443557).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45443557) 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, 180925 + ... + 181175.

It is an arithmetic number, because the mean of its divisors is an integer number (1265544).

Almost surely, 2^45443550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45443550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60746112).

45443550 is an abundant number, since it is smaller than the sum of its proper divisors (76048674).

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

45443550 is a wasteful number, since it uses less digits than its factorization.

45443550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 45443550 is about 6741.1831305788. The cubic root of 45443550 is about 356.8541487711.

The spelling of 45443550 in words is "forty-five million, four hundred forty-three thousand, five hundred fifty".