30641733 has 20 divisors (see below), whose sum is σ = 47253888. Its totient is φ = 19767240.

The previous prime is 30641731. The next prime is 30641749. The reversal of 30641733 is 33714603.

It is a happy number.

It is not a de Polignac number, because 30641733 - 2¹ = 30641731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 30641697 and 30641706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30641731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3591 + ... + 8612.

Almost surely, 2^30641733 is an apocalyptic number.

It is an amenable number.

30641733 is a deficient number, since it is larger than the sum of its proper divisors (16612155).

30641733 is a wasteful number, since it uses less digits than its factorization.

30641733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12246 (or 12237 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 30641733 is about 5535.4975386139. The cubic root of 30641733 is about 312.9232085770.

The spelling of 30641733 in words is "thirty million, six hundred forty-one thousand, seven hundred thirty-three".