48221690 has 64 divisors (see below), whose sum is σ = 101616768. Its totient is φ = 16281600.

The previous prime is 48221689. The next prime is 48221711. The reversal of 48221690 is 9612284.

It is a super-2 number, since 2×48221690² = 4650662772912200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199970 + ... + 200210.

It is an arithmetic number, because the mean of its divisors is an integer number (1587762).

Almost surely, 2^48221690 is an apocalyptic number.

48221690 is an abundant number, since it is smaller than the sum of its proper divisors (53395078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

48221690 is a wasteful number, since it uses less digits than its factorization.

48221690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 48221690 is about 6944.1838973345. The cubic root of 48221690 is about 363.9827558952.

The spelling of 48221690 in words is "forty-eight million, two hundred twenty-one thousand, six hundred ninety".