33744361428 has 96 divisors (see below), whose sum is σ = 90378731520. Its totient is φ = 10876692960.

The previous prime is 33744361421. The next prime is 33744361447. The reversal of 33744361428 is 82416344733.

33744361428 is a `hidden beast` number, since 3 + 3 + 7 + 4 + 4 + 3 + 614 + 28 = 666.

It is a super-2 number, since 2×33744361428² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33744361421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5296701 + ... + 5303067.

It is an arithmetic number, because the mean of its divisors is an integer number (941445120).

Almost surely, 2^33744361428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33744361428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45189365760).

33744361428 is an abundant number, since it is smaller than the sum of its proper divisors (56634370092).

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

33744361428 is a wasteful number, since it uses less digits than its factorization.

33744361428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7994 (or 7986 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 45.

The spelling of 33744361428 in words is "thirty-three billion, seven hundred forty-four million, three hundred sixty-one thousand, four hundred twenty-eight".