49396381 has 2 divisors, whose sum is σ = 49396382. Its totient is φ = 49396380.

The previous prime is 49396363. The next prime is 49396411. The reversal of 49396381 is 18369394.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45024100 + 4372281 = 6710^2 + 2091^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49396381 is a prime.

It is a super-2 number, since 2×49396381² = 4880004911794322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49396681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24698190 + 24698191.

It is an arithmetic number, because the mean of its divisors is an integer number (24698191).

Almost surely, 2^49396381 is an apocalyptic number.

It is an amenable number.

49396381 is a deficient number, since it is larger than the sum of its proper divisors (1).

49396381 is an equidigital number, since it uses as much as digits as its factorization.

49396381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 43.

The square root of 49396381 is about 7028.2559002928. The cubic root of 49396381 is about 366.9146428164.

The spelling of 49396381 in words is "forty-nine million, three hundred ninety-six thousand, three hundred eighty-one".