33450379974 has 80 divisors (see below), whose sum is σ = 82686724560. Its totient is φ = 10022538240.

The previous prime is 33450379969. The next prime is 33450379979. The reversal of 33450379974 is 47997305433.

33450379974 is a `hidden beast` number, since 3 + 3 + 450 + 37 + 99 + 74 = 666.

It is an interprime number because it is at equal distance from previous prime (33450379969) and next prime (33450379979).

It is a super-2 number, since 2×33450379974² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 33450379974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33450379979) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 53142 + ... + 264054.

It is an arithmetic number, because the mean of its divisors is an integer number (1033584057).

Almost surely, 2^33450379974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33450379974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41343362280).

33450379974 is an abundant number, since it is smaller than the sum of its proper divisors (49236344586).

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

33450379974 is a wasteful number, since it uses less digits than its factorization.

33450379974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211027 (or 211018 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 54.

The spelling of 33450379974 in words is "thirty-three billion, four hundred fifty million, three hundred seventy-nine thousand, nine hundred seventy-four".