49216321 has 16 divisors (see below), whose sum is σ = 61544448. Its totient is φ = 38235600.

The previous prime is 49216283. The next prime is 49216333. The reversal of 49216321 is 12361294.

It is a cyclic number.

It is not a de Polignac number, because 49216321 - 2¹⁵ = 49183553 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 49216321.

It is not an unprimeable number, because it can be changed into a prime (49216361) 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, 32446 + ... + 33928.

It is an arithmetic number, because the mean of its divisors is an integer number (3846528).

Almost surely, 2^49216321 is an apocalyptic number.

It is an amenable number.

49216321 is a deficient number, since it is larger than the sum of its proper divisors (12328127).

49216321 is a wasteful number, since it uses less digits than its factorization.

49216321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932.

The product of its digits is 2592, while the sum is 28.

The square root of 49216321 is about 7015.4344840502. The cubic root of 49216321 is about 366.4682734824.

The spelling of 49216321 in words is "forty-nine million, two hundred sixteen thousand, three hundred twenty-one".