49278831 has 8 divisors (see below), whose sum is σ = 75091584. Its totient is φ = 28159320.

The previous prime is 49278829. The next prime is 49278833. The reversal of 49278831 is 13887294.

It is an interprime number because it is at equal distance from previous prime (49278829) and next prime (49278833).

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

It is not a de Polignac number, because 49278831 - 2¹ = 49278829 is a prime.

It is a super-2 number, since 2×49278831² = 4856806369453122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49278833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1173285 + ... + 1173326.

It is an arithmetic number, because the mean of its divisors is an integer number (9386448).

Almost surely, 2^49278831 is an apocalyptic number.

49278831 is a deficient number, since it is larger than the sum of its proper divisors (25812753).

49278831 is a wasteful number, since it uses less digits than its factorization.

49278831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346621.

The product of its digits is 96768, while the sum is 42.

The square root of 49278831 is about 7019.8882469737. Note that the first 3 decimals coincide. The cubic root of 49278831 is about 366.6233591642.

The spelling of 49278831 in words is "forty-nine million, two hundred seventy-eight thousand, eight hundred thirty-one".