33861740 has 48 divisors (see below), whose sum is σ = 78170400. Its totient is φ = 12218880.

The previous prime is 33861713. The next prime is 33861749. The reversal of 33861740 is 4716833.

It is a super-2 number, since 2×33861740² = 2293234871655200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 33861697 and 33861706.

It is not an unprimeable number, because it can be changed into a prime (33861749) 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, 32264 + ... + 33296.

It is an arithmetic number, because the mean of its divisors is an integer number (1628550).

Almost surely, 2^33861740 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 33861740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39085200).

33861740 is an abundant number, since it is smaller than the sum of its proper divisors (44308660).

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

33861740 is a wasteful number, since it uses less digits than its factorization.

33861740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202 (or 1200 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 33861740 is about 5819.0841203750. The cubic root of 33861740 is about 323.5214573445.

The spelling of 33861740 in words is "thirty-three million, eight hundred sixty-one thousand, seven hundred forty".