3520020372 has 192 divisors, whose sum is σ = 9659381760. Its totient is φ = 987148800.

The previous prime is 3520020367. The next prime is 3520020401. The reversal of 3520020372 is 2730200253.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15371154 + ... + 15371382.

It is an arithmetic number, because the mean of its divisors is an integer number (50309280).

Almost surely, 2^3520020372 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 3520020372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4829690880).

3520020372 is an abundant number, since it is smaller than the sum of its proper divisors (6139361388).

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

3520020372 is a wasteful number, since it uses less digits than its factorization.

3520020372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 3520020372 is about 59329.7595815119. The cubic root of 3520020372 is about 1521.1839189105.

The spelling of 3520020372 in words is "three billion, five hundred twenty million, twenty thousand, three hundred seventy-two".