49638401 has 4 divisors (see below), whose sum is σ = 51350100. Its totient is φ = 47926704.

The previous prime is 49638377. The next prime is 49638403. The reversal of 49638401 is 10483694.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31584400 + 18054001 = 5620^2 + 4249^2 .

It is a cyclic number.

It is not a de Polignac number, because 49638401 - 2¹⁰ = 49637377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49638403) 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, 855806 + ... + 855863.

It is an arithmetic number, because the mean of its divisors is an integer number (12837525).

Almost surely, 2^49638401 is an apocalyptic number.

It is an amenable number.

49638401 is a deficient number, since it is larger than the sum of its proper divisors (1711699).

49638401 is a wasteful number, since it uses less digits than its factorization.

49638401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711698.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 49638401 is about 7045.4525049850. The cubic root of 49638401 is about 367.5129055890.

It can be divided in two parts, 49 and 638401, that multiplied together give a square (31281649 = 5593²).

The spelling of 49638401 in words is "forty-nine million, six hundred thirty-eight thousand, four hundred one".