538299278 has 16 divisors (see below), whose sum is σ = 883678896. Its totient is φ = 243896640.

The previous prime is 538299277. The next prime is 538299301. The reversal of 538299278 is 872992835.

It is a super-2 number, since 2×538299278² = 579532225390642568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538299277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32201 + ... + 45972.

It is an arithmetic number, because the mean of its divisors is an integer number (55229931).

Almost surely, 2^538299278 is an apocalyptic number.

538299278 is a deficient number, since it is larger than the sum of its proper divisors (345379618).

538299278 is a wasteful number, since it uses less digits than its factorization.

538299278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78499.

The product of its digits is 2177280, while the sum is 53.

The square root of 538299278 is about 23201.2775079305. The cubic root of 538299278 is about 813.4694840976.

It can be divided in two parts, 5 and 38299278, that added together give a palindrome (38299283).

The spelling of 538299278 in words is "five hundred thirty-eight million, two hundred ninety-nine thousand, two hundred seventy-eight".