30669672 has 64 divisors (see below), whose sum is σ = 87298560. Its totient is φ = 8888000.

The previous prime is 30669671. The next prime is 30669673. The reversal of 30669672 is 27696603.

It is an interprime number because it is at equal distance from previous prime (30669671) and next prime (30669673).

It is a self number, because there is not a number n which added to its sum of digits gives 30669672.

It is not an unprimeable number, because it can be changed into a prime (30669671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3547 + ... + 8597.

It is an arithmetic number, because the mean of its divisors is an integer number (1364040).

Almost surely, 2^30669672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30669672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43649280).

30669672 is an abundant number, since it is smaller than the sum of its proper divisors (56628888).

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

30669672 is a wasteful number, since it uses less digits than its factorization.

30669672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5094 (or 5090 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 30669672 is about 5538.0205850105. The cubic root of 30669672 is about 313.0182870295.

The spelling of 30669672 in words is "thirty million, six hundred sixty-nine thousand, six hundred seventy-two".