30302070 has 16 divisors (see below), whose sum is σ = 72725040. Its totient is φ = 8080544.

The previous prime is 30302059. The next prime is 30302101. The reversal of 30302070 is 7020303.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 505005 + ... + 505064.

It is an arithmetic number, because the mean of its divisors is an integer number (4545315).

Almost surely, 2^30302070 is an apocalyptic number.

30302070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30302070 is an abundant number, since it is smaller than the sum of its proper divisors (42422970).

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

30302070 is a wasteful number, since it uses less digits than its factorization.

30302070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010079.

The product of its (nonzero) digits is 126, while the sum is 15.

The square root of 30302070 is about 5504.7316010865. The cubic root of 30302070 is about 311.7626605594.

Adding to 30302070 its reverse (7020303), we get a palindrome (37322373).

The spelling of 30302070 in words is "thirty million, three hundred two thousand, seventy".