996438255 has 16 divisors (see below), whose sum is σ = 1688084064. Its totient is φ = 500172800.

The previous prime is 996438229. The next prime is 996438257. The reversal of 996438255 is 552834699.

It is not a de Polignac number, because 996438255 - 2²⁰ = 995389679 is a prime.

It is a super-3 number, since 3×996438255³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 996438198 and 996438207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996438257) 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, 1953546 + ... + 1954055.

It is an arithmetic number, because the mean of its divisors is an integer number (105505254).

Almost surely, 2^996438255 is an apocalyptic number.

996438255 is a deficient number, since it is larger than the sum of its proper divisors (691645809).

996438255 is a wasteful number, since it uses less digits than its factorization.

996438255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3907626.

The product of its digits is 2332800, while the sum is 51.

The square root of 996438255 is about 31566.4102330309. The cubic root of 996438255 is about 998.8113393123.

The spelling of 996438255 in words is "nine hundred ninety-six million, four hundred thirty-eight thousand, two hundred fifty-five".