538001493 has 8 divisors (see below), whose sum is σ = 717504000. Its totient is φ = 358583328.

The previous prime is 538001489. The next prime is 538001537. The reversal of 538001493 is 394100835.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 538001493 - 2² = 538001489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538001413) 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, 4288 + ... + 33081.

It is an arithmetic number, because the mean of its divisors is an integer number (89688000).

Almost surely, 2^538001493 is an apocalyptic number.

It is an amenable number.

538001493 is a deficient number, since it is larger than the sum of its proper divisors (179502507).

538001493 is a wasteful number, since it uses less digits than its factorization.

538001493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42171.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 538001493 is about 23194.8591933644. The cubic root of 538001493 is about 813.3194537443.

The spelling of 538001493 in words is "five hundred thirty-eight million, one thousand, four hundred ninety-three".