1520685222 has 64 divisors (see below), whose sum is σ = 3655839744. Its totient is φ = 412513920.

The previous prime is 1520685167. The next prime is 1520685251. The reversal of 1520685222 is 2225860251.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57988 + ... + 80024.

It is an arithmetic number, because the mean of its divisors is an integer number (57122496).

Almost surely, 2^1520685222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1520685222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1827919872).

1520685222 is an abundant number, since it is smaller than the sum of its proper divisors (2135154522).

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

1520685222 is a wasteful number, since it uses less digits than its factorization.

1520685222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22133.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 1520685222 is about 38995.9641757964. The cubic root of 1520685222 is about 1149.9521648660.

The spelling of 1520685222 in words is "one billion, five hundred twenty million, six hundred eighty-five thousand, two hundred twenty-two".