30696732 has 144 divisors (see below), whose sum is σ = 91610400. Its totient is φ = 8981280.

The previous prime is 30696691. The next prime is 30696739. The reversal of 30696732 is 23769603.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30696739) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1058494 + ... + 1058522.

Almost surely, 2^30696732 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 30696732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45805200).

30696732 is an abundant number, since it is smaller than the sum of its proper divisors (60913668).

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

30696732 is a wasteful number, since it uses less digits than its factorization.

30696732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 45 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

The square root of 30696732 is about 5540.4631575348. The cubic root of 30696732 is about 313.1103191511.

It can be divided in two parts, 3069 and 6732, that added together give a square (9801 = 99²).

The spelling of 30696732 in words is "thirty million, six hundred ninety-six thousand, seven hundred thirty-two".