523148436 has 48 divisors (see below), whose sum is σ = 1400071680. Its totient is φ = 168756480.

The previous prime is 523148407. The next prime is 523148447. The reversal of 523148436 is 634841325.

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

It is a self number, because there is not a number n which added to its sum of digits gives 523148436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74781 + ... + 81476.

It is an arithmetic number, because the mean of its divisors is an integer number (29168160).

Almost surely, 2^523148436 is an apocalyptic number.

It is an amenable number.

523148436 is an abundant number, since it is smaller than the sum of its proper divisors (876923244).

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

523148436 is a wasteful number, since it uses less digits than its factorization.

523148436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156301 (or 156293 counting only the distinct ones).

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

The square root of 523148436 is about 22872.4383483703. The cubic root of 523148436 is about 805.7648356372.

The spelling of 523148436 in words is "five hundred twenty-three million, one hundred forty-eight thousand, four hundred thirty-six".