538335672 has 64 divisors (see below), whose sum is σ = 1546164480. Its totient is φ = 153004032.

The previous prime is 538335643. The next prime is 538335673. The reversal of 538335672 is 276533835.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538335673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24123 + ... + 40725.

It is an arithmetic number, because the mean of its divisors is an integer number (24158820).

Almost surely, 2^538335672 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 538335672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (773082240).

538335672 is an abundant number, since it is smaller than the sum of its proper divisors (1007828808).

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

538335672 is a wasteful number, since it uses less digits than its factorization.

538335672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16812 (or 16808 counting only the distinct ones).

The product of its digits is 453600, while the sum is 42.

The square root of 538335672 is about 23202.0618049345. The cubic root of 538335672 is about 813.4878163665.

The spelling of 538335672 in words is "five hundred thirty-eight million, three hundred thirty-five thousand, six hundred seventy-two".