30049740 has 108 divisors (see below), whose sum is σ = 106063776. Its totient is φ = 6866496.

The previous prime is 30049739. The next prime is 30049807. The reversal of 30049740 is 4794003.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7117 + ... + 10523.

It is an arithmetic number, because the mean of its divisors is an integer number (982072).

Almost surely, 2^30049740 is an apocalyptic number.

30049740 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 30049740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53031888).

30049740 is an abundant number, since it is smaller than the sum of its proper divisors (76014036).

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

30049740 is a wasteful number, since it uses less digits than its factorization.

30049740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436 (or 3424 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 30049740 is about 5481.7643145250. The cubic root of 30049740 is about 310.8948821584.

The spelling of 30049740 in words is "thirty million, forty-nine thousand, seven hundred forty".