30649646 has 4 divisors (see below), whose sum is σ = 45974472. Its totient is φ = 15324822.

The previous prime is 30649643. The next prime is 30649667. The reversal of 30649646 is 64694603.

It is a happy number.

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 (30649643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7662410 + ... + 7662413.

It is an arithmetic number, because the mean of its divisors is an integer number (11493618).

Almost surely, 2^30649646 is an apocalyptic number.

30649646 is a deficient number, since it is larger than the sum of its proper divisors (15324826).

30649646 is a wasteful number, since it uses less digits than its factorization.

30649646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15324825.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 30649646 is about 5536.2122430413. The cubic root of 30649646 is about 312.9501429569.

The spelling of 30649646 in words is "thirty million, six hundred forty-nine thousand, six hundred forty-six".