30950000 has 60 divisors (see below), whose sum is σ = 75073320. Its totient is φ = 12360000.

The previous prime is 30949991. The next prime is 30950011. The reversal of 30950000 is 5903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49691 + ... + 50309.

It is an arithmetic number, because the mean of its divisors is an integer number (1251222).

Almost surely, 2^30950000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30950000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37536660).

30950000 is an abundant number, since it is smaller than the sum of its proper divisors (44123320).

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

30950000 is an frugal number, since it uses more digits than its factorization.

30950000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652 (or 626 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 17.

The square root of 30950000 is about 5563.2724182804. The cubic root of 30950000 is about 313.9690829229.

Adding to 30950000 its reverse (5903), we get a palindrome (30955903).

The spelling of 30950000 in words is "thirty million, nine hundred fifty thousand".