49431223 has 16 divisors (see below), whose sum is σ = 54419040. Its totient is φ = 44706816.

The previous prime is 49431211. The next prime is 49431227. The reversal of 49431223 is 32213494.

49431223 = 357² + 358² + ... + 578².

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49431223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49431191 and 49431200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49431227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55540 + ... + 56422.

It is an arithmetic number, because the mean of its divisors is an integer number (3401190).

Almost surely, 2^49431223 is an apocalyptic number.

49431223 is a deficient number, since it is larger than the sum of its proper divisors (4987817).

49431223 is a wasteful number, since it uses less digits than its factorization.

49431223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026.

The product of its digits is 5184, while the sum is 28.

The square root of 49431223 is about 7030.7341721900. The cubic root of 49431223 is about 367.0008909392. Note that the first 3 decimals are identical.

The spelling of 49431223 in words is "forty-nine million, four hundred thirty-one thousand, two hundred twenty-three".