48320381 has 4 divisors (see below), whose sum is σ = 48476064. Its totient is φ = 48164700.

The previous prime is 48320353. The next prime is 48320383. The reversal of 48320381 is 18302384.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 48320381 - 2⁶ = 48320317 is a prime.

It is a super-2 number, since 2×48320381² = 4669718439970322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48320383) 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, 77375 + ... + 77996.

It is an arithmetic number, because the mean of its divisors is an integer number (12119016).

Almost surely, 2^48320381 is an apocalyptic number.

It is an amenable number.

48320381 is a deficient number, since it is larger than the sum of its proper divisors (155683).

48320381 is a wasteful number, since it uses less digits than its factorization.

48320381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155682.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 48320381 is about 6951.2862838470. The cubic root of 48320381 is about 364.2308969565.

The spelling of 48320381 in words is "forty-eight million, three hundred twenty thousand, three hundred eighty-one".