508466381 has 4 divisors (see below), whose sum is σ = 508577472. Its totient is φ = 508355292.

The previous prime is 508466369. The next prime is 508466411. The reversal of 508466381 is 183664805.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 183664805 = 5 ⋅36732961.

It is a cyclic number.

It is not a de Polignac number, because 508466381 - 2⁶ = 508466317 is a prime.

It is a super-2 number, since 2×508466381² = 517076121214474322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (508466341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48371 + ... + 57936.

It is an arithmetic number, because the mean of its divisors is an integer number (127144368).

Almost surely, 2^508466381 is an apocalyptic number.

It is an amenable number.

508466381 is a deficient number, since it is larger than the sum of its proper divisors (111091).

508466381 is a wasteful number, since it uses less digits than its factorization.

508466381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111090.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 508466381 is about 22549.1991210331. The cubic root of 508466381 is about 798.1553231661.

The spelling of 508466381 in words is "five hundred eight million, four hundred sixty-six thousand, three hundred eighty-one".