49421399 has 4 divisors (see below), whose sum is σ = 49456080. Its totient is φ = 49386720.

The previous prime is 49421369. The next prime is 49421401. The reversal of 49421399 is 99312494.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49421399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49421369) 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, 15107 + ... + 18084.

It is an arithmetic number, because the mean of its divisors is an integer number (12364020).

Almost surely, 2^49421399 is an apocalyptic number.

49421399 is a deficient number, since it is larger than the sum of its proper divisors (34681).

49421399 is a wasteful number, since it uses less digits than its factorization.

49421399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34680.

The product of its digits is 69984, while the sum is 41.

The square root of 49421399 is about 7030.0354906643. The cubic root of 49421399 is about 366.9765766468.

The spelling of 49421399 in words is "forty-nine million, four hundred twenty-one thousand, three hundred ninety-nine".