30649949 has 8 divisors (see below), whose sum is σ = 34340448. Its totient is φ = 27110160.

The previous prime is 30649943. The next prime is 30649951. The reversal of 30649949 is 94994603.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30649949 - 2⁴ = 30649933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30649943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37247 + ... + 38060.

It is an arithmetic number, because the mean of its divisors is an integer number (4292556).

Almost surely, 2^30649949 is an apocalyptic number.

It is an amenable number.

30649949 is a deficient number, since it is larger than the sum of its proper divisors (3690499).

30649949 is a wasteful number, since it uses less digits than its factorization.

30649949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75355.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 30649949 is about 5536.2396082540. The cubic root of 30649949 is about 312.9511742204.

The spelling of 30649949 in words is "thirty million, six hundred forty-nine thousand, nine hundred forty-nine".