45572982 has 128 divisors (see below), whose sum is σ = 123863040. Its totient is φ = 10834560.

The previous prime is 45572981. The next prime is 45572993. The reversal of 45572982 is 28927554.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45572981) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 238507 + ... + 238697.

It is an arithmetic number, because the mean of its divisors is an integer number (967680).

Almost surely, 2^45572982 is an apocalyptic number.

45572982 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 45572982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61931520).

45572982 is an abundant number, since it is smaller than the sum of its proper divisors (78290058).

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

45572982 is a wasteful number, since it uses less digits than its factorization.

45572982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258.

The product of its digits is 201600, while the sum is 42.

The square root of 45572982 is about 6750.7763997928. The cubic root of 45572982 is about 357.1926241200.

It can be divided in two parts, 455 and 72982, that added together give a palindrome (73437).

The spelling of 45572982 in words is "forty-five million, five hundred seventy-two thousand, nine hundred eighty-two".