461343440 has 40 divisors (see below), whose sum is σ = 1075779360. Its totient is φ = 183994496.

The previous prime is 461343437. The next prime is 461343451. The reversal of 461343440 is 44343164.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19451 + ... + 36069.

It is an arithmetic number, because the mean of its divisors is an integer number (26894484).

Almost surely, 2^461343440 is an apocalyptic number.

461343440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

461343440 is an abundant number, since it is smaller than the sum of its proper divisors (614435920).

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

461343440 is a wasteful number, since it uses less digits than its factorization.

461343440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16979 (or 16973 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 461343440 is about 21478.9068623149. The cubic root of 461343440 is about 772.6950258704.

The spelling of 461343440 in words is "four hundred sixty-one million, three hundred forty-three thousand, four hundred forty".