49406905 has 4 divisors (see below), whose sum is σ = 59288292. Its totient is φ = 39525520.

The previous prime is 49406899. The next prime is 49406933. The reversal of 49406905 is 50960494.

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 17732521 + 31674384 = 4211^2 + 5628^2 .

It is not a de Polignac number, because 49406905 - 2⁵ = 49406873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4940686 + ... + 4940695.

It is an arithmetic number, because the mean of its divisors is an integer number (14822073).

Almost surely, 2^49406905 is an apocalyptic number.

It is an amenable number.

49406905 is a deficient number, since it is larger than the sum of its proper divisors (9881387).

49406905 is an equidigital number, since it uses as much as digits as its factorization.

49406905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9881386.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 49406905 is about 7029.0045525665. The cubic root of 49406905 is about 366.9406982711.

The spelling of 49406905 in words is "forty-nine million, four hundred six thousand, nine hundred five".