45490500 has 144 divisors (see below), whose sum is σ = 156723840. Its totient is φ = 11016000.

The previous prime is 45490493. The next prime is 45490513. The reversal of 45490500 is 509454.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49041 + ... + 49959.

It is an arithmetic number, because the mean of its divisors is an integer number (1088360).

Almost surely, 2^45490500 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 45490500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78361920).

45490500 is an abundant number, since it is smaller than the sum of its proper divisors (111233340).

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

45490500 is a wasteful number, since it uses less digits than its factorization.

45490500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 45490500 is about 6744.6645580043. The cubic root of 45490500 is about 356.9770010841.

Adding to 45490500 its reverse (509454), we get a palindrome (45999954).

It can be divided in two parts, 45 and 490500, that added together give a triangular number (490545 = T₉₉₀).

The spelling of 45490500 in words is "forty-five million, four hundred ninety thousand, five hundred".