1522939968 has 280 divisors, whose sum is σ = 5217895584. Its totient is φ = 434073600.

The previous prime is 1522939961. The next prime is 1522939981. The reversal of 1522939968 is 8699392251.

It is a happy number.

It is a super-2 number, since 2×1522939968² = 4638692292263682048, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1522939961) 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, 968623 + ... + 970193.

Almost surely, 2^1522939968 is an apocalyptic number.

1522939968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1522939968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2608947792).

1522939968 is an abundant number, since it is smaller than the sum of its proper divisors (3694955616).

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

1522939968 is a wasteful number, since it uses less digits than its factorization.

1522939968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623 (or 1604 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 1522939968 is about 39024.8634590821. The cubic root of 1522939968 is about 1150.5202354466.

It can be divided in two parts, 152293 and 9968, that added together give a palindrome (162261).

The spelling of 1522939968 in words is "one billion, five hundred twenty-two million, nine hundred thirty-nine thousand, nine hundred sixty-eight".