48190821 has 16 divisors (see below), whose sum is σ = 77299200. Its totient is φ = 26088048.

The previous prime is 48190817. The next prime is 48190823. The reversal of 48190821 is 12809184.

It is not a de Polignac number, because 48190821 - 2² = 48190817 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48190823) 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, 59991 + ... + 60788.

It is an arithmetic number, because the mean of its divisors is an integer number (4831200).

Almost surely, 2^48190821 is an apocalyptic number.

It is an amenable number.

48190821 is a deficient number, since it is larger than the sum of its proper divisors (29108379).

48190821 is a wasteful number, since it uses less digits than its factorization.

48190821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120808.

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 48190821 is about 6941.9608901232. The cubic root of 48190821 is about 363.9050717517.

The spelling of 48190821 in words is "forty-eight million, one hundred ninety thousand, eight hundred twenty-one".