49132421 has 4 divisors (see below), whose sum is σ = 52911852. Its totient is φ = 45352992.

The previous prime is 49132417. The next prime is 49132451. The reversal of 49132421 is 12423194.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12348196 + 36784225 = 3514^2 + 6065^2 .

It is a cyclic number.

It is not a de Polignac number, because 49132421 - 2² = 49132417 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 (49132451) 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, 1889696 + ... + 1889721.

It is an arithmetic number, because the mean of its divisors is an integer number (13227963).

Almost surely, 2^49132421 is an apocalyptic number.

It is an amenable number.

49132421 is a deficient number, since it is larger than the sum of its proper divisors (3779431).

49132421 is a wasteful number, since it uses less digits than its factorization.

49132421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3779430.

The product of its digits is 1728, while the sum is 26.

The square root of 49132421 is about 7009.4522610544. The cubic root of 49132421 is about 366.2599132232.

The spelling of 49132421 in words is "forty-nine million, one hundred thirty-two thousand, four hundred twenty-one".