4661280 has 192 divisors, whose sum is σ = 17781120. Its totient is φ = 1133568.

The previous prime is 4661263. The next prime is 4661291. The reversal of 4661280 is 821664.

4661280 is a `hidden beast` number, since 46 + 612 + 8 + 0 = 666.

It is a Cunningham number, because it is equal to 2159²-1.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56119 + ... + 56201.

It is an arithmetic number, because the mean of its divisors is an integer number (92610).

Almost surely, 2^4661280 is an apocalyptic number.

4661280 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 4661280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8890560).

4661280 is an abundant number, since it is smaller than the sum of its proper divisors (13119840).

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

4661280 is a wasteful number, since it uses less digits than its factorization.

4661280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 4661280 is about 2158.9997684113. Note that the first 3 decimals coincide. The cubic root of 4661280 is about 167.0456088749.

The spelling of 4661280 in words is "four million, six hundred sixty-one thousand, two hundred eighty".