30513422 has 4 divisors (see below), whose sum is σ = 45770136. Its totient is φ = 15256710.

The previous prime is 30513409. The next prime is 30513451. The reversal of 30513422 is 22431503.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 30513394 and 30513403.

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, 7628354 + ... + 7628357.

It is an arithmetic number, because the mean of its divisors is an integer number (11442534).

Almost surely, 2^30513422 is an apocalyptic number.

30513422 is a deficient number, since it is larger than the sum of its proper divisors (15256714).

30513422 is a wasteful number, since it uses less digits than its factorization.

30513422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15256713.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30513422 is about 5523.8955457177. The cubic root of 30513422 is about 312.4858131160.

Adding to 30513422 its reverse (22431503), we get a palindrome (52944925).

The spelling of 30513422 in words is "thirty million, five hundred thirteen thousand, four hundred twenty-two".