49422639 has 16 divisors (see below), whose sum is σ = 77347328. Its totient is φ = 27477792.

The previous prime is 49422631. The next prime is 49422643. The reversal of 49422639 is 93622494.

49422639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 49422639 - 2³ = 49422631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49422597 and 49422606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49422631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31027 + ... + 32580.

It is an arithmetic number, because the mean of its divisors is an integer number (4834208).

Almost surely, 2^49422639 is an apocalyptic number.

49422639 is a deficient number, since it is larger than the sum of its proper divisors (27924689).

49422639 is a wasteful number, since it uses less digits than its factorization.

49422639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63654.

The product of its digits is 93312, while the sum is 39.

The square root of 49422639 is about 7030.1236831225. The cubic root of 49422639 is about 366.9796458109.

The spelling of 49422639 in words is "forty-nine million, four hundred twenty-two thousand, six hundred thirty-nine".