49158986 has 8 divisors (see below), whose sum is σ = 74113380. Its totient is φ = 24454528.

The previous prime is 49158979. The next prime is 49159021. The reversal of 49158986 is 68985194.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42003361 + 7155625 = 6481^2 + 2675^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 61991 + ... + 62778.

Almost surely, 2^49158986 is an apocalyptic number.

49158986 is a deficient number, since it is larger than the sum of its proper divisors (24954394).

49158986 is a wasteful number, since it uses less digits than its factorization.

49158986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124968.

The product of its digits is 622080, while the sum is 50.

The square root of 49158986 is about 7011.3469462009. The cubic root of 49158986 is about 366.3259113385.

The spelling of 49158986 in words is "forty-nine million, one hundred fifty-eight thousand, nine hundred eighty-six".