45327828 has 144 divisors (see below), whose sum is σ = 136421376. Its totient is φ = 11456640.

The previous prime is 45327823. The next prime is 45327833. The reversal of 45327828 is 82872354.

It is an interprime number because it is at equal distance from previous prime (45327823) and next prime (45327833).

It is a super-2 number, since 2×45327828² = 4109223982395168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45327823) 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, 440025 + ... + 440127.

Almost surely, 2^45327828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45327828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68210688).

45327828 is an abundant number, since it is smaller than the sum of its proper divisors (91093548).

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

45327828 is a wasteful number, since it uses less digits than its factorization.

45327828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 159 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 45327828 is about 6732.5944479079. The cubic root of 45327828 is about 356.5509815904.

It can be divided in two parts, 4 and 5327828, that multiplied together give a palindrome (21311312).

The spelling of 45327828 in words is "forty-five million, three hundred twenty-seven thousand, eight hundred twenty-eight".