538501284 has 30 divisors (see below), whose sum is σ = 1407749574. Its totient is φ = 179500320.

The previous prime is 538501283. The next prime is 538501291. The reversal of 538501284 is 482105835.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 534996900 + 3504384 = 23130^2 + 1872^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (538501283) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 830697 + ... + 831344.

Almost surely, 2^538501284 is an apocalyptic number.

538501284 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

538501284 is an abundant number, since it is smaller than the sum of its proper divisors (869248290).

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

538501284 is a wasteful number, since it uses less digits than its factorization.

538501284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662057 (or 1662046 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 538501284 is about 23205.6304374606. The cubic root of 538501284 is about 813.5712274786.

The spelling of 538501284 in words is "five hundred thirty-eight million, five hundred one thousand, two hundred eighty-four".