538383444 has 24 divisors (see below), whose sum is σ = 1260328608. Its totient is φ = 178875360.

The previous prime is 538383431. The next prime is 538383457. The reversal of 538383444 is 444383835.

It is an interprime number because it is at equal distance from previous prime (538383431) and next prime (538383457).

It is a super-2 number, since 2×538383444² = 579713465546602272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 538383396 and 538383405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69387 + ... + 76754.

It is an arithmetic number, because the mean of its divisors is an integer number (52513692).

Almost surely, 2^538383444 is an apocalyptic number.

It is an amenable number.

538383444 is an abundant number, since it is smaller than the sum of its proper divisors (721945164).

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

538383444 is a wasteful number, since it uses less digits than its factorization.

538383444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146455 (or 146453 counting only the distinct ones).

The product of its digits is 552960, while the sum is 42.

The square root of 538383444 is about 23203.0912595714. The cubic root of 538383444 is about 813.5118786709.

The spelling of 538383444 in words is "five hundred thirty-eight million, three hundred eighty-three thousand, four hundred forty-four".