30250742 has 4 divisors (see below), whose sum is σ = 45376116. Its totient is φ = 15125370.

The previous prime is 30250733. The next prime is 30250747. The reversal of 30250742 is 24705203.

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 (30250747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7562684 + ... + 7562687.

It is an arithmetic number, because the mean of its divisors is an integer number (11344029).

Almost surely, 2^30250742 is an apocalyptic number.

30250742 is a deficient number, since it is larger than the sum of its proper divisors (15125374).

30250742 is a wasteful number, since it uses less digits than its factorization.

30250742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15125373.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 30250742 is about 5500.0674541318. The cubic root of 30250742 is about 311.5865318044.

Adding to 30250742 its reverse (24705203), we get a palindrome (54955945).

The spelling of 30250742 in words is "thirty million, two hundred fifty thousand, seven hundred forty-two".