538653340 has 24 divisors (see below), whose sum is σ = 1133031312. Its totient is φ = 215107200.

The previous prime is 538653277. The next prime is 538653373. The reversal of 538653340 is 43356835.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 538653340.

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, 9486 + ... + 34165.

It is an arithmetic number, because the mean of its divisors is an integer number (47209638).

Almost surely, 2^538653340 is an apocalyptic number.

It is an amenable number.

538653340 is an abundant number, since it is smaller than the sum of its proper divisors (594377972).

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

538653340 is a wasteful number, since it uses less digits than its factorization.

538653340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44277 (or 44275 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 538653340 is about 23208.9064800563. The cubic root of 538653340 is about 813.6477960020.

The spelling of 538653340 in words is "five hundred thirty-eight million, six hundred fifty-three thousand, three hundred forty".