49149278 has 8 divisors (see below), whose sum is σ = 78060672. Its totient is φ = 23129056.

The previous prime is 49149277. The next prime is 49149307. The reversal of 49149278 is 87294194.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49149277) 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, 722750 + ... + 722817.

It is an arithmetic number, because the mean of its divisors is an integer number (9757584).

Almost surely, 2^49149278 is an apocalyptic number.

49149278 is a deficient number, since it is larger than the sum of its proper divisors (28911394).

49149278 is a wasteful number, since it uses less digits than its factorization.

49149278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445586.

The product of its digits is 145152, while the sum is 44.

The square root of 49149278 is about 7010.6546056699. The cubic root of 49149278 is about 366.3017955301.

The spelling of 49149278 in words is "forty-nine million, one hundred forty-nine thousand, two hundred seventy-eight".