461021286 has 64 divisors (see below), whose sum is σ = 1028434176. Its totient is φ = 136598400.

The previous prime is 461021273. The next prime is 461021287. The reversal of 461021286 is 682120164.

It is a super-2 number, since 2×461021286² = 425081252290187592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461021287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1235796 + ... + 1236168.

It is an arithmetic number, because the mean of its divisors is an integer number (16069284).

Almost surely, 2^461021286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 461021286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (514217088).

461021286 is an abundant number, since it is smaller than the sum of its proper divisors (567412890).

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

461021286 is a wasteful number, since it uses less digits than its factorization.

461021286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 461021286 is about 21471.4062417905. The cubic root of 461021286 is about 772.5151275302.

The spelling of 461021286 in words is "four hundred sixty-one million, twenty-one thousand, two hundred eighty-six".