48381409 has 2 divisors, whose sum is σ = 48381410. Its totient is φ = 48381408.

The previous prime is 48381383. The next prime is 48381449. The reversal of 48381409 is 90418384.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38440000 + 9941409 = 6200^2 + 3153^2 .

It is a cyclic number.

It is not a de Polignac number, because 48381409 - 2¹³ = 48373217 is a prime.

It is equal to p_2909647 and since 48381409 and 2909647 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (48381449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24190704 + 24190705.

It is an arithmetic number, because the mean of its divisors is an integer number (24190705).

Almost surely, 2^48381409 is an apocalyptic number.

It is an amenable number.

48381409 is a deficient number, since it is larger than the sum of its proper divisors (1).

48381409 is an equidigital number, since it uses as much as digits as its factorization.

48381409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 48381409 is about 6955.6745898583. The cubic root of 48381409 is about 364.3841720430.

The spelling of 48381409 in words is "forty-eight million, three hundred eighty-one thousand, four hundred nine".