49213439 has 16 divisors (see below), whose sum is σ = 57214080. Its totient is φ = 41859360.

The previous prime is 49213427. The next prime is 49213459. The reversal of 49213439 is 93431294.

It is a cyclic number.

It is not a de Polignac number, because 49213439 - 2¹² = 49209343 is a prime.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 49213399 and 49213408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49213459) 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, 15929 + ... + 18765.

It is an arithmetic number, because the mean of its divisors is an integer number (3575880).

Almost surely, 2^49213439 is an apocalyptic number.

49213439 is a deficient number, since it is larger than the sum of its proper divisors (8000641).

49213439 is a wasteful number, since it uses less digits than its factorization.

49213439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2950.

The product of its digits is 23328, while the sum is 35.

The square root of 49213439 is about 7015.2290768014. The cubic root of 49213439 is about 366.4611201495.

It can be divided in two parts, 492 and 13439, that added together give a palindrome (13931).

The spelling of 49213439 in words is "forty-nine million, two hundred thirteen thousand, four hundred thirty-nine".