64792280 has 96 divisors (see below), whose sum is σ = 176113440. Its totient is φ = 21012480.

The previous prime is 64792243. The next prime is 64792297. The reversal of 64792280 is 8229746.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100760 + ... + 101400.

It is an arithmetic number, because the mean of its divisors is an integer number (1834515).

Almost surely, 2^64792280 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 64792280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88056720).

64792280 is an abundant number, since it is smaller than the sum of its proper divisors (111321160).

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

64792280 is a wasteful number, since it uses less digits than its factorization.

64792280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 64792280 is about 8049.3651923614. The cubic root of 64792280 is about 401.6438187295.

The spelling of 64792280 in words is "sixty-four million, seven hundred ninety-two thousand, two hundred eighty".