49321018 has 4 divisors (see below), whose sum is σ = 73981530. Its totient is φ = 24660508.

The previous prime is 49321009. The next prime is 49321021. The reversal of 49321018 is 81012394.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 42680089 + 6640929 = 6533^2 + 2577^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12330253 + ... + 12330256.

Almost surely, 2^49321018 is an apocalyptic number.

49321018 is a deficient number, since it is larger than the sum of its proper divisors (24660512).

49321018 is a wasteful number, since it uses less digits than its factorization.

49321018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24660511.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 49321018 is about 7022.8924240657. The cubic root of 49321018 is about 366.7279499037.

The spelling of 49321018 in words is "forty-nine million, three hundred twenty-one thousand, eighteen".