33489534 has 32 divisors (see below), whose sum is σ = 73501344. Its totient is φ = 10108800.

The previous prime is 33489503. The next prime is 33489559. The reversal of 33489534 is 43598433.

It is a super-2 number, since 2×33489534² = 2243097775074312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 33489492 and 33489501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84 + ... + 8184.

It is an arithmetic number, because the mean of its divisors is an integer number (2296917).

Almost surely, 2^33489534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33489534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36750672).

33489534 is an abundant number, since it is smaller than the sum of its proper divisors (40011810).

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

33489534 is a wasteful number, since it uses less digits than its factorization.

33489534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8172.

The product of its digits is 155520, while the sum is 39.

The square root of 33489534 is about 5787.0142560737. The cubic root of 33489534 is about 322.3317119703.

The spelling of 33489534 in words is "thirty-three million, four hundred eighty-nine thousand, five hundred thirty-four".