30477742 has 4 divisors (see below), whose sum is σ = 45716616. Its totient is φ = 15238870.

The previous prime is 30477739. The next prime is 30477757. The reversal of 30477742 is 24777403.

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 = 30477698 and 30477707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7619434 + ... + 7619437.

It is an arithmetic number, because the mean of its divisors is an integer number (11429154).

Almost surely, 2^30477742 is an apocalyptic number.

30477742 is a deficient number, since it is larger than the sum of its proper divisors (15238874).

30477742 is a wasteful number, since it uses less digits than its factorization.

30477742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15238873.

The product of its (nonzero) digits is 32928, while the sum is 34.

The square root of 30477742 is about 5520.6649961757. The cubic root of 30477742 is about 312.3639668192.

The spelling of 30477742 in words is "thirty million, four hundred seventy-seven thousand, seven hundred forty-two".