49204821 has 8 divisors (see below), whose sum is σ = 65759680. Its totient is φ = 32726592.

The previous prime is 49204819. The next prime is 49204849. The reversal of 49204821 is 12840294.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49204821 - 2¹ = 49204819 is a prime.

It is a super-2 number, since 2×49204821² = 4842228819284082, 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 (49204811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17641 + ... + 20238.

It is an arithmetic number, because the mean of its divisors is an integer number (8219960).

Almost surely, 2^49204821 is an apocalyptic number.

It is an amenable number.

49204821 is a deficient number, since it is larger than the sum of its proper divisors (16554859).

49204821 is a wasteful number, since it uses less digits than its factorization.

49204821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38315.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 49204821 is about 7014.6148147992. The cubic root of 49204821 is about 366.4397279826.

The spelling of 49204821 in words is "forty-nine million, two hundred four thousand, eight hundred twenty-one".