30421808 has 10 divisors (see below), whose sum is σ = 58942284. Its totient is φ = 15210896.

The previous prime is 30421763. The next prime is 30421817. The reversal of 30421808 is 80812403.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 950666 + ... + 950697.

Almost surely, 2^30421808 is an apocalyptic number.

It is an amenable number.

30421808 is a deficient number, since it is larger than the sum of its proper divisors (28520476).

30421808 is a wasteful number, since it uses less digits than its factorization.

30421808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901371 (or 1901365 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 30421808 is about 5515.5967945454. The cubic root of 30421808 is about 312.1727620887.

The spelling of 30421808 in words is "thirty million, four hundred twenty-one thousand, eight hundred eight".