461377140 has 144 divisors (see below), whose sum is σ = 1514923200. Its totient is φ = 104606208.

The previous prime is 461377139. The next prime is 461377151. The reversal of 461377140 is 41773164.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 408096 + ... + 409224.

It is an arithmetic number, because the mean of its divisors is an integer number (10520300).

Almost surely, 2^461377140 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 461377140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (757461600).

461377140 is an abundant number, since it is smaller than the sum of its proper divisors (1053546060).

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

461377140 is a wasteful number, since it uses less digits than its factorization.

461377140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294 (or 1285 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 461377140 is about 21479.6913385644. The cubic root of 461377140 is about 772.7138399007.

The spelling of 461377140 in words is "four hundred sixty-one million, three hundred seventy-seven thousand, one hundred forty".