49028381 has 2 divisors, whose sum is σ = 49028382. Its totient is φ = 49028380.

The previous prime is 49028377. The next prime is 49028383. The reversal of 49028381 is 18382094.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39262756 + 9765625 = 6266^2 + 3125^2 .

It is a cyclic number.

It is not a de Polignac number, because 49028381 - 2² = 49028377 is a prime.

It is a super-2 number, since 2×49028381² = 4807564286962322, which contains 22 as substring.

Together with 49028383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49028383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24514190 + 24514191.

It is an arithmetic number, because the mean of its divisors is an integer number (24514191).

Almost surely, 2^49028381 is an apocalyptic number.

It is an amenable number.

49028381 is a deficient number, since it is larger than the sum of its proper divisors (1).

49028381 is an equidigital number, since it uses as much as digits as its factorization.

49028381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 49028381 is about 7002.0269208280. The cubic root of 49028381 is about 366.0012068600.

The spelling of 49028381 in words is "forty-nine million, twenty-eight thousand, three hundred eighty-one".