438135036 has 24 divisors (see below), whose sum is σ = 1036715904. Its totient is φ = 143987760.

The previous prime is 438135031. The next prime is 438135037. The reversal of 438135036 is 630531834.

It is a junction number, because it is equal to n+sod(n) for n = 438134988 and 438135006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438135031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256270 + ... + 257973.

It is an arithmetic number, because the mean of its divisors is an integer number (43196496).

Almost surely, 2^438135036 is an apocalyptic number.

It is an amenable number.

438135036 is an abundant number, since it is smaller than the sum of its proper divisors (598580868).

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

438135036 is a wasteful number, since it uses less digits than its factorization.

438135036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514321 (or 514319 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 438135036 is about 20931.6754226698. The cubic root of 438135036 is about 759.5143688855.

The spelling of 438135036 in words is "four hundred thirty-eight million, one hundred thirty-five thousand, thirty-six".