535726638 has 12 divisors (see below), whose sum is σ = 1160741088. Its totient is φ = 178575540.

The previous prime is 535726579. The next prime is 535726643. The reversal of 535726638 is 836627535.

535726638 is a `hidden beast` number, since 5 + 3 + 5 + 7 + 2 + 6 + 638 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 535726593 and 535726602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14881278 + ... + 14881313.

It is an arithmetic number, because the mean of its divisors is an integer number (96728424).

Almost surely, 2^535726638 is an apocalyptic number.

535726638 is an abundant number, since it is smaller than the sum of its proper divisors (625014450).

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

535726638 is a wasteful number, since it uses less digits than its factorization.

535726638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29762599 (or 29762596 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 535726638 is about 23145.7693326448. The cubic root of 535726638 is about 812.1715029606.

The spelling of 535726638 in words is "five hundred thirty-five million, seven hundred twenty-six thousand, six hundred thirty-eight".