49270781 has 16 divisors (see below), whose sum is σ = 59535360. Its totient is φ = 39832560.

The previous prime is 49270769. The next prime is 49270783. The reversal of 49270781 is 18707294.

It is a cyclic number.

It is not a de Polignac number, because 49270781 - 2¹⁴ = 49254397 is a prime.

It is a super-2 number, since 2×49270781² = 4855219720699922, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49270783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35360 + ... + 36726.

It is an arithmetic number, because the mean of its divisors is an integer number (3720960).

Almost surely, 2^49270781 is an apocalyptic number.

It is an amenable number.

49270781 is a deficient number, since it is larger than the sum of its proper divisors (10264579).

49270781 is a wasteful number, since it uses less digits than its factorization.

49270781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 49270781 is about 7019.3148526049. The cubic root of 49270781 is about 366.6033946839.

The spelling of 49270781 in words is "forty-nine million, two hundred seventy thousand, seven hundred eighty-one".