30070 has 16 divisors (see below), whose sum is σ = 56448. Its totient is φ = 11520.

The previous prime is 30059. The next prime is 30071. The reversal of 30070 is 7003.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262 + ... + 358.

It is an arithmetic number, because the mean of its divisors is an integer number (3528).

2³⁰⁰⁷⁰ is an apocalyptic number.

30070 is a deficient number, since it is larger than the sum of its proper divisors (26378).

30070 is a wasteful number, since it uses less digits than its factorization.

30070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135.

The product of its (nonzero) digits is 21, while the sum is 10.

The square root of 30070 is about 173.4070356127. The cubic root of 30070 is about 31.0964736510.

Multiplying 30070 by its sum of digits (10), we get a triangular number (300700 = T₇₇₅).

Adding to 30070 its reverse (7003), we get a palindrome (37073).

The spelling of 30070 in words is "thirty thousand, seventy".