33748047438 has 96 divisors (see below), whose sum is σ = 79537446144. Its totient is φ = 9517471488.

The previous prime is 33748047349. The next prime is 33748047451. The reversal of 33748047438 is 83474084733.

It is a happy number.

It is a super-2 number, since 2×33748047438² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10203381 + ... + 10206687.

It is an arithmetic number, because the mean of its divisors is an integer number (828515064).

Almost surely, 2^33748047438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33748047438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39768723072).

33748047438 is an abundant number, since it is smaller than the sum of its proper divisors (45789398706).

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

33748047438 is a wasteful number, since it uses less digits than its factorization.

33748047438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3766 (or 3759 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 51.

The spelling of 33748047438 in words is "thirty-three billion, seven hundred forty-eight million, forty-seven thousand, four hundred thirty-eight".