30707242 has 4 divisors (see below), whose sum is σ = 46060866. Its totient is φ = 15353620.

The previous prime is 30707233. The next prime is 30707251. The reversal of 30707242 is 24270703.

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

It is an interprime number because it is at equal distance from previous prime (30707233) and next prime (30707251).

It can be written as a sum of positive squares in only one way, i.e., 16801801 + 13905441 = 4099^2 + 3729^2 .

It is a super-2 number, since 2×30707242² = 1885869422493128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7676809 + ... + 7676812.

Almost surely, 2^30707242 is an apocalyptic number.

30707242 is a deficient number, since it is larger than the sum of its proper divisors (15353624).

30707242 is a wasteful number, since it uses less digits than its factorization.

30707242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15353623.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 30707242 is about 5541.4115530251. The cubic root of 30707242 is about 313.1460494904.

Adding to 30707242 its reverse (24270703), we get a palindrome (54977945).

The spelling of 30707242 in words is "thirty million, seven hundred seven thousand, two hundred forty-two".