461312280 has 512 divisors, whose sum is σ = 1886976000. Its totient is φ = 98703360.

The previous prime is 461312249. The next prime is 461312281. The reversal of 461312280 is 82213164.

461312280 is a `hidden beast` number, since 461 + 3 + 122 + 80 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461312281) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4478709 + ... + 4478811.

It is an arithmetic number, because the mean of its divisors is an integer number (3685500).

Almost surely, 2^461312280 is an apocalyptic number.

461312280 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 461312280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (943488000).

461312280 is an abundant number, since it is smaller than the sum of its proper divisors (1425663720).

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

461312280 is a wasteful number, since it uses less digits than its factorization.

461312280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 166 counting only the distinct ones).

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

The square root of 461312280 is about 21478.1814872675. The cubic root of 461312280 is about 772.6776290557.

The spelling of 461312280 in words is "four hundred sixty-one million, three hundred twelve thousand, two hundred eighty".