30434749 has 8 divisors (see below), whose sum is σ = 30909632. Its totient is φ = 29963520.

The previous prime is 30434699. The next prime is 30434783. The reversal of 30434749 is 94743403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30434749 - 2¹⁵ = 30401981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30434249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19114 + ... + 20644.

It is an arithmetic number, because the mean of its divisors is an integer number (3863704).

Almost surely, 2^30434749 is an apocalyptic number.

It is an amenable number.

30434749 is a deficient number, since it is larger than the sum of its proper divisors (474883).

30434749 is a wasteful number, since it uses less digits than its factorization.

30434749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 30434749 is about 5516.7697976261. The cubic root of 30434749 is about 312.2170204162.

It can be divided in two parts, 304 and 34749, that added together give a palindrome (35053).

The spelling of 30434749 in words is "thirty million, four hundred thirty-four thousand, seven hundred forty-nine".