30199740 has 96 divisors (see below), whose sum is σ = 90720000. Its totient is φ = 7483392.

The previous prime is 30199727. The next prime is 30199751. The reversal of 30199740 is 4799103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67036 + ... + 67484.

It is an arithmetic number, because the mean of its divisors is an integer number (945000).

Almost surely, 2^30199740 is an apocalyptic number.

30199740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30199740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45360000).

30199740 is an abundant number, since it is smaller than the sum of its proper divisors (60520260).

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

30199740 is a wasteful number, since it uses less digits than its factorization.

30199740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 30199740 is about 5495.4290096406. The cubic root of 30199740 is about 311.4113242500.

The spelling of 30199740 in words is "thirty million, one hundred ninety-nine thousand, seven hundred forty".