30240734 has 4 divisors (see below), whose sum is σ = 45361104. Its totient is φ = 15120366.

The previous prime is 30240719. The next prime is 30240737. The reversal of 30240734 is 43704203.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30240737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7560182 + ... + 7560185.

It is an arithmetic number, because the mean of its divisors is an integer number (11340276).

Almost surely, 2^30240734 is an apocalyptic number.

30240734 is a deficient number, since it is larger than the sum of its proper divisors (15120370).

30240734 is a wasteful number, since it uses less digits than its factorization.

30240734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15120369.

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

The square root of 30240734 is about 5499.1575718468. The cubic root of 30240734 is about 311.5521667856.

Adding to 30240734 its reverse (43704203), we get a palindrome (73944937).

The spelling of 30240734 in words is "thirty million, two hundred forty thousand, seven hundred thirty-four".