538732992 has 336 divisors, whose sum is σ = 1846519040. Its totient is φ = 135364608.

The previous prime is 538732949. The next prime is 538732993. The reversal of 538732992 is 299237835.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538732993) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7379868 + ... + 7379940.

Almost surely, 2^538732992 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 538732992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (923259520).

538732992 is an abundant number, since it is smaller than the sum of its proper divisors (1307786048).

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

538732992 is a wasteful number, since it uses less digits than its factorization.

538732992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 121 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

The square root of 538732992 is about 23210.6223957911. The cubic root of 538732992 is about 813.6878993952.

It can be divided in two parts, 53873 and 2992, that added together give a palindrome (56865).

The spelling of 538732992 in words is "five hundred thirty-eight million, seven hundred thirty-two thousand, nine hundred ninety-two".