33861016 has 16 divisors (see below), whose sum is σ = 72559440. Its totient is φ = 14511840.

The previous prime is 33861013. The next prime is 33861017. The reversal of 33861016 is 61016833.

It is a super-2 number, since 2×33861016² = 2293136809104512, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33861013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302275 + ... + 302386.

It is an arithmetic number, because the mean of its divisors is an integer number (4534965).

Almost surely, 2^33861016 is an apocalyptic number.

It is an amenable number.

33861016 is an abundant number, since it is smaller than the sum of its proper divisors (38698424).

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

33861016 is a wasteful number, since it uses less digits than its factorization.

33861016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604674 (or 604670 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 33861016 is about 5819.0219109400. The cubic root of 33861016 is about 323.5191515839.

Adding to 33861016 its reverse (61016833), we get a palindrome (94877849).

The spelling of 33861016 in words is "thirty-three million, eight hundred sixty-one thousand, sixteen".