30635940 has 48 divisors (see below), whose sum is σ = 86429952. Its totient is φ = 8107776.

The previous prime is 30635939. The next prime is 30635947. The reversal of 30635940 is 4953603.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 30635898 and 30635907.

It is not an unprimeable number, because it can be changed into a prime (30635947) 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, 6357 + ... + 10083.

It is an arithmetic number, because the mean of its divisors is an integer number (1800624).

Almost surely, 2^30635940 is an apocalyptic number.

30635940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30635940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43214976).

30635940 is an abundant number, since it is smaller than the sum of its proper divisors (55794012).

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

30635940 is a wasteful number, since it uses less digits than its factorization.

30635940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3876 (or 3874 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 30635940 is about 5534.9742546827. The cubic root of 30635940 is about 312.9034873426.

The spelling of 30635940 in words is "thirty million, six hundred thirty-five thousand, nine hundred forty".