33450450 has 144 divisors (see below), whose sum is σ = 96972960. Its totient is φ = 7603200.

The previous prime is 33450449. The next prime is 33450451. The reversal of 33450450 is 5405433.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (33450449) and next prime (33450451).

It is a super-2 number, since 2×33450450² = 2237865210405000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33450450.

It is not an unprimeable number, because it can be changed into a prime (33450451) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 344802 + ... + 344898.

Almost surely, 2^33450450 is an apocalyptic number.

33450450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 33450450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48486480).

33450450 is an abundant number, since it is smaller than the sum of its proper divisors (63522510).

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

33450450 is a wasteful number, since it uses less digits than its factorization.

33450450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 33450450 is about 5783.6363993598. The cubic root of 33450450 is about 322.2062706244.

Adding to 33450450 its reverse (5405433), we get a palindrome (38855883).

The spelling of 33450450 in words is "thirty-three million, four hundred fifty thousand, four hundred fifty".