654135438 has 24 divisors (see below), whose sum is σ = 1438018344. Its totient is φ = 198222640.

The previous prime is 654135437. The next prime is 654135481. The reversal of 654135438 is 834531456.

It is a junction number, because it is equal to n+sod(n) for n = 654135396 and 654135405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654135431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 449781 + ... + 451232.

It is an arithmetic number, because the mean of its divisors is an integer number (59917431).

Almost surely, 2^654135438 is an apocalyptic number.

654135438 is an abundant number, since it is smaller than the sum of its proper divisors (783882906).

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

654135438 is a wasteful number, since it uses less digits than its factorization.

654135438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901040 (or 901029 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 654135438 is about 25576.0715904534. The cubic root of 654135438 is about 868.0722888183.

The spelling of 654135438 in words is "six hundred fifty-four million, one hundred thirty-five thousand, four hundred thirty-eight".