30420663 has 16 divisors (see below), whose sum is σ = 49921536. Its totient is φ = 16045920.

The previous prime is 30420659. The next prime is 30420673. The reversal of 30420663 is 36602403.

It is not a de Polignac number, because 30420663 - 2² = 30420659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30420673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55443 + ... + 55988.

It is an arithmetic number, because the mean of its divisors is an integer number (3120096).

Almost surely, 2^30420663 is an apocalyptic number.

30420663 is a deficient number, since it is larger than the sum of its proper divisors (19500873).

30420663 is a wasteful number, since it uses less digits than its factorization.

30420663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111454.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 30420663 is about 5515.4929970040. The cubic root of 30420663 is about 312.1688455749.

The spelling of 30420663 in words is "thirty million, four hundred twenty thousand, six hundred sixty-three".