1523428326 has 96 divisors (see below), whose sum is σ = 3869798400. Its totient is φ = 432949104.

The previous prime is 1523428271. The next prime is 1523428331. The reversal of 1523428326 is 6238243251.

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 47 ways as a sum of consecutive naturals, for example, 1400955 + ... + 1402041.

It is an arithmetic number, because the mean of its divisors is an integer number (40310400).

Almost surely, 2^1523428326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1523428326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1934899200).

1523428326 is an abundant number, since it is smaller than the sum of its proper divisors (2346370074).

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

1523428326 is a wasteful number, since it uses less digits than its factorization.

1523428326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343 (or 1326 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 1523428326 is about 39031.1199685584. The cubic root of 1523428326 is about 1150.6432006162.

The spelling of 1523428326 in words is "one billion, five hundred twenty-three million, four hundred twenty-eight thousand, three hundred twenty-six".