45280620 has 288 divisors, whose sum is σ = 179053056. Its totient is φ = 9408960.

The previous prime is 45280607. The next prime is 45280657. The reversal of 45280620 is 2608254.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4116415 + ... + 4116425.

It is an arithmetic number, because the mean of its divisors is an integer number (621712).

Almost surely, 2^45280620 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 45280620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89526528).

45280620 is an abundant number, since it is smaller than the sum of its proper divisors (133772436).

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

45280620 is a wasteful number, since it uses less digits than its factorization.

45280620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 45280620 is about 6729.0876053147. The cubic root of 45280620 is about 356.4271584242.

Adding to 45280620 its reverse (2608254), we get a palindrome (47888874).

The spelling of 45280620 in words is "forty-five million, two hundred eighty thousand, six hundred twenty".