30408949 has 8 divisors (see below), whose sum is σ = 32157440. Its totient is φ = 28675296.

The previous prime is 30408941. The next prime is 30408997. The reversal of 30408949 is 94980403.

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

It is a cyclic number.

It is not a de Polignac number, because 30408949 - 2³ = 30408941 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 (30408941) 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, 649 + ... + 7825.

It is an arithmetic number, because the mean of its divisors is an integer number (4019680).

Almost surely, 2^30408949 is an apocalyptic number.

It is an amenable number.

30408949 is a deficient number, since it is larger than the sum of its proper divisors (1748491).

30408949 is a wasteful number, since it uses less digits than its factorization.

30408949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7419.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 30408949 is about 5514.4309769912. The cubic root of 30408949 is about 312.1287717680.

The spelling of 30408949 in words is "thirty million, four hundred eight thousand, nine hundred forty-nine".