30535372 has 48 divisors (see below), whose sum is σ = 63766528. Its totient is φ = 12519360.

The previous prime is 30535343. The next prime is 30535409. The reversal of 30535372 is 27353503.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 30535372.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110098 + ... + 110374.

Almost surely, 2^30535372 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 30535372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31883264).

30535372 is an abundant number, since it is smaller than the sum of its proper divisors (33231156).

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

30535372 is a wasteful number, since it uses less digits than its factorization.

30535372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 28.

The square root of 30535372 is about 5525.8820110458. The cubic root of 30535372 is about 312.5607246260.

Adding to 30535372 its reverse (27353503), we get a palindrome (57888875).

The spelling of 30535372 in words is "thirty million, five hundred thirty-five thousand, three hundred seventy-two".