30461738 has 4 divisors (see below), whose sum is σ = 45692610. Its totient is φ = 15230868.

The previous prime is 30461737. The next prime is 30461741. The reversal of 30461738 is 83716403.

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

It can be written as a sum of positive squares in only one way, i.e., 30327049 + 134689 = 5507^2 + 367^2 .

It is not an unprimeable number, because it can be changed into a prime (30461737) by changing a digit.

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, 7615433 + ... + 7615436.

Almost surely, 2^30461738 is an apocalyptic number.

30461738 is a deficient number, since it is larger than the sum of its proper divisors (15230872).

30461738 is a wasteful number, since it uses less digits than its factorization.

30461738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15230871.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 30461738 is about 5519.2153427820. The cubic root of 30461738 is about 312.3092826698.

The spelling of 30461738 in words is "thirty million, four hundred sixty-one thousand, seven hundred thirty-eight".