30434072 has 8 divisors (see below), whose sum is σ = 57063900. Its totient is φ = 15217032.

The previous prime is 30434069. The next prime is 30434081. The reversal of 30434072 is 27043403.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1902122 + ... + 1902137.

Almost surely, 2^30434072 is an apocalyptic number.

It is an amenable number.

30434072 is a deficient number, since it is larger than the sum of its proper divisors (26629828).

30434072 is a wasteful number, since it uses less digits than its factorization.

30434072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3804265 (or 3804261 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 30434072 is about 5516.7084389154. The cubic root of 30434072 is about 312.2147053816.

Adding to 30434072 its reverse (27043403), we get a palindrome (57477475).

The spelling of 30434072 in words is "thirty million, four hundred thirty-four thousand, seventy-two".