48720381 has 4 divisors (see below), whose sum is σ = 64960512. Its totient is φ = 32480252.

The previous prime is 48720367. The next prime is 48720383. The reversal of 48720381 is 18302784.

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 48720381 - 2¹³ = 48712189 is a prime.

It is a super-2 number, since 2×48720381² = 4747351049570322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48720383) 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, 8120061 + ... + 8120066.

It is an arithmetic number, because the mean of its divisors is an integer number (16240128).

Almost surely, 2^48720381 is an apocalyptic number.

It is an amenable number.

48720381 is a deficient number, since it is larger than the sum of its proper divisors (16240131).

48720381 is a wasteful number, since it uses less digits than its factorization.

48720381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16240130.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 48720381 is about 6979.9986389683. The cubic root of 48720381 is about 365.2331805809.

The spelling of 48720381 in words is "forty-eight million, seven hundred twenty thousand, three hundred eighty-one".