30323070 has 48 divisors (see below), whose sum is σ = 83481840. Its totient is φ = 7610112.

The previous prime is 30323063. The next prime is 30323071. The reversal of 30323070 is 7032303.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30323071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8380 + ... + 11439.

It is an arithmetic number, because the mean of its divisors is an integer number (1739205).

Almost surely, 2^30323070 is an apocalyptic number.

30323070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30323070 is an abundant number, since it is smaller than the sum of its proper divisors (53158770).

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

30323070 is a wasteful number, since it uses less digits than its factorization.

30323070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19849 (or 19846 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 18.

The square root of 30323070 is about 5506.6387206716. The cubic root of 30323070 is about 311.8346633857.

Adding to 30323070 its reverse (7032303), we get a palindrome (37355373).

The spelling of 30323070 in words is "thirty million, three hundred twenty-three thousand, seventy".