1461752730 has 160 divisors (see below), whose sum is σ = 4061534400. Its totient is φ = 377042688.

The previous prime is 1461752717. The next prime is 1461752749. The reversal of 1461752730 is 372571641.

It is a happy number.

1461752730 is a `hidden beast` number, since 1 + 4 + 617 + 5 + 2 + 7 + 30 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3488461 + ... + 3488879.

It is an arithmetic number, because the mean of its divisors is an integer number (25384590).

Almost surely, 2^1461752730 is an apocalyptic number.

1461752730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1461752730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2030767200).

1461752730 is an abundant number, since it is smaller than the sum of its proper divisors (2599781670).

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

1461752730 is a wasteful number, since it uses less digits than its factorization.

1461752730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570 (or 561 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 1461752730 is about 38232.8749899873. The cubic root of 1461752730 is about 1134.9009804486.

The spelling of 1461752730 in words is "one billion, four hundred sixty-one million, seven hundred fifty-two thousand, seven hundred thirty".