45689280 has 224 divisors, whose sum is σ = 178881024. Its totient is φ = 9621504.

The previous prime is 45689221. The next prime is 45689309. The reversal of 45689280 is 8298654.

It is a tau number, because it is divible by the number of its divisors (224).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87099 + ... + 87621.

It is an arithmetic number, because the mean of its divisors is an integer number (798576).

Almost surely, 2^45689280 is an apocalyptic number.

45689280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45689280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89440512).

45689280 is an abundant number, since it is smaller than the sum of its proper divisors (133191744).

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

45689280 is a wasteful number, since it uses less digits than its factorization.

45689280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 45689280 is about 6759.3845873718. The cubic root of 45689280 is about 357.4962067832.

The spelling of 45689280 in words is "forty-five million, six hundred eighty-nine thousand, two hundred eighty".