30694480 has 20 divisors (see below), whose sum is σ = 71364852. Its totient is φ = 12277760.

The previous prime is 30694459. The next prime is 30694487. The reversal of 30694480 is 8449603.

It can be written as a sum of positive squares in 2 ways, for example, as 21790224 + 8904256 = 4668^2 + 2984^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×30694480² = 1884302204940800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30694487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191761 + ... + 191920.

Almost surely, 2^30694480 is an apocalyptic number.

It is an amenable number.

30694480 is an abundant number, since it is smaller than the sum of its proper divisors (40670372).

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

30694480 is a wasteful number, since it uses less digits than its factorization.

30694480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383694 (or 383688 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 30694480 is about 5540.2599217004. The cubic root of 30694480 is about 313.1026620745.

The spelling of 30694480 in words is "thirty million, six hundred ninety-four thousand, four hundred eighty".