30461730 has 64 divisors (see below), whose sum is σ = 80898048. Its totient is φ = 7292160.

The previous prime is 30461681. The next prime is 30461737. The reversal of 30461730 is 3716403.

It is a self number, because there is not a number n which added to its sum of digits gives 30461730.

It is not an unprimeable number, because it can be changed into a prime (30461737) 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, 13375 + ... + 15485.

It is an arithmetic number, because the mean of its divisors is an integer number (1264032).

Almost surely, 2^30461730 is an apocalyptic number.

30461730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30461730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40449024).

30461730 is an abundant number, since it is smaller than the sum of its proper divisors (50436318).

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

30461730 is a wasteful number, since it uses less digits than its factorization.

30461730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 30461730 is about 5519.2146180412. The cubic root of 30461730 is about 312.3092553297.

The spelling of 30461730 in words is "thirty million, four hundred sixty-one thousand, seven hundred thirty".