45647280 has 160 divisors (see below), whose sum is σ = 179750400. Its totient is φ = 10430208.

The previous prime is 45647269. The next prime is 45647317. The reversal of 45647280 is 8274654.

45647280 is a `hidden beast` number, since 4 + 5 + 647 + 2 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 13611 + ... + 16629.

It is an arithmetic number, because the mean of its divisors is an integer number (1123440).

Almost surely, 2^45647280 is an apocalyptic number.

45647280 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 45647280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89875200).

45647280 is an abundant number, since it is smaller than the sum of its proper divisors (134103120).

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

45647280 is a wasteful number, since it uses less digits than its factorization.

45647280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048 (or 3036 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 45647280 is about 6756.2770813518. The cubic root of 45647280 is about 357.3866300667.

The spelling of 45647280 in words is "forty-five million, six hundred forty-seven thousand, two hundred eighty".