49221869 has 4 divisors (see below), whose sum is σ = 49455360. Its totient is φ = 48988380.

The previous prime is 49221857. The next prime is 49221899. The reversal of 49221869 is 96812294.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49221869 is a prime.

It is a super-2 number, since 2×49221869² = 4845584775706322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49221839) 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, 116429 + ... + 116850.

It is an arithmetic number, because the mean of its divisors is an integer number (12363840).

Almost surely, 2^49221869 is an apocalyptic number.

It is an amenable number.

49221869 is a deficient number, since it is larger than the sum of its proper divisors (233491).

49221869 is a wasteful number, since it uses less digits than its factorization.

49221869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233490.

The product of its digits is 62208, while the sum is 41.

The square root of 49221869 is about 7015.8298867632. The cubic root of 49221869 is about 366.4820432343.

The spelling of 49221869 in words is "forty-nine million, two hundred twenty-one thousand, eight hundred sixty-nine".