30401020 has 24 divisors (see below), whose sum is σ = 68753664. Its totient is φ = 11224896.

The previous prime is 30401003. The next prime is 30401053. The reversal of 30401020 is 2010403.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 30400988 and 30401006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58204 + ... + 58723.

It is an arithmetic number, because the mean of its divisors is an integer number (2864736).

Almost surely, 2^30401020 is an apocalyptic number.

It is an amenable number.

30401020 is an abundant number, since it is smaller than the sum of its proper divisors (38352644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30401020 is a wasteful number, since it uses less digits than its factorization.

30401020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116949 (or 116947 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 30401020 is about 5513.7119982821. The cubic root of 30401020 is about 312.1016406740.

Adding to 30401020 its reverse (2010403), we get a palindrome (32411423).

The spelling of 30401020 in words is "thirty million, four hundred one thousand, twenty".