3378721032 has 128 divisors (see below), whose sum is σ = 9960451200. Its totient is φ = 1057536000.

The previous prime is 3378721019. The next prime is 3378721033. The reversal of 3378721032 is 2301278733.

3378721032 is a `hidden beast` number, since 337 + 87 + 210 + 32 = 666.

It is a super-2 number, since 2×3378721032² = 22831511624158290048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3378721033) 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, 2206107 + ... + 2207637.

It is an arithmetic number, because the mean of its divisors is an integer number (77816025).

Almost surely, 2^3378721032 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 3378721032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4980225600).

3378721032 is an abundant number, since it is smaller than the sum of its proper divisors (6581730168).

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

3378721032 is a wasteful number, since it uses less digits than its factorization.

3378721032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164 (or 2154 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 3378721032 is about 58126.7669150797. The cubic root of 3378721032 is about 1500.5510615293.

Adding to 3378721032 its reverse (2301278733), we get a palindrome (5679999765).

The spelling of 3378721032 in words is "three billion, three hundred seventy-eight million, seven hundred twenty-one thousand, thirty-two".