30841236 has 30 divisors (see below), whose sum is σ = 80625930. Its totient is φ = 10280304.

The previous prime is 30841231. The next prime is 30841241. The reversal of 30841236 is 63214803.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30841231) and next prime (30841241).

It can be written as a sum of positive squares in only one way, i.e., 22752900 + 8088336 = 4770^2 + 2844^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30841231) 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 9 ways as a sum of consecutive naturals, for example, 47271 + ... + 47918.

It is an arithmetic number, because the mean of its divisors is an integer number (2687531).

Almost surely, 2^30841236 is an apocalyptic number.

30841236 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30841236 is an abundant number, since it is smaller than the sum of its proper divisors (49784694).

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

30841236 is a wasteful number, since it uses less digits than its factorization.

30841236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95205 (or 95194 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 30841236 is about 5553.4886332827. The cubic root of 30841236 is about 313.6008695355.

The spelling of 30841236 in words is "thirty million, eight hundred forty-one thousand, two hundred thirty-six".