33086440 has 16 divisors (see below), whose sum is σ = 74444580. Its totient is φ = 13234560.

The previous prime is 33086401. The next prime is 33086491. The reversal of 33086440 is 4468033.

It can be written as a sum of positive squares in 2 ways, for example, as 32058244 + 1028196 = 5662^2 + 1014^2 .

It is a junction number, because it is equal to n+sod(n) for n = 33086399 and 33086408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413541 + ... + 413620.

Almost surely, 2^33086440 is an apocalyptic number.

It is an amenable number.

33086440 is an abundant number, since it is smaller than the sum of its proper divisors (41358140).

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

33086440 is a wasteful number, since it uses less digits than its factorization.

33086440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827172 (or 827168 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 33086440 is about 5752.0813624287. The cubic root of 33086440 is about 321.0332486919.

The spelling of 33086440 in words is "thirty-three million, eighty-six thousand, four hundred forty".