33213404344340 has 96 divisors (see below), whose sum is σ = 82677232189440. Its totient is φ = 11072843510400.

The previous prime is 33213404344277. The next prime is 33213404344399. The reversal of 33213404344340 is 4344340431233.

It is a happy number.

It is a super-2 number, since 2×33213404344340² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 33213404344294 and 33213404344303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128028332 + ... + 128287491.

It is an arithmetic number, because the mean of its divisors is an integer number (861221168640).

Almost surely, 2^{33213404344340} is an apocalyptic number.

It is an amenable number.

33213404344340 is an abundant number, since it is smaller than the sum of its proper divisors (49463827845100).

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

33213404344340 is a wasteful number, since it uses less digits than its factorization.

33213404344340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256315893 (or 256315891 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 38.

Adding to 33213404344340 its reverse (4344340431233), we get a palindrome (37557744775573).

The spelling of 33213404344340 in words is "thirty-three trillion, two hundred thirteen billion, four hundred four million, three hundred forty-four thousand, three hundred forty".