30670340 has 12 divisors (see below), whose sum is σ = 64407756. Its totient is φ = 12268128.

The previous prime is 30670319. The next prime is 30670349. The reversal of 30670340 is 4307603.

It can be written as a sum of positive squares in 2 ways, for example, as 12845056 + 17825284 = 3584^2 + 4222^2 .

It is not an unprimeable number, because it can be changed into a prime (30670349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 766739 + ... + 766778.

It is an arithmetic number, because the mean of its divisors is an integer number (5367313).

Almost surely, 2^30670340 is an apocalyptic number.

It is an amenable number.

30670340 is an abundant number, since it is smaller than the sum of its proper divisors (33737416).

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

30670340 is a wasteful number, since it uses less digits than its factorization.

30670340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533526 (or 1533524 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 30670340 is about 5538.0808950394. The cubic root of 30670340 is about 313.0205595752.

Adding to 30670340 its reverse (4307603), we get a palindrome (34977943).

The spelling of 30670340 in words is "thirty million, six hundred seventy thousand, three hundred forty".