101820446 has 32 divisors (see below), whose sum is σ = 199039680. Its totient is φ = 37910016.

The previous prime is 101820443. The next prime is 101820469. The reversal of 101820446 is 644028101.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101820443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13361 + ... + 19548.

It is an arithmetic number, because the mean of its divisors is an integer number (6219990).

Almost surely, 2^101820446 is an apocalyptic number.

101820446 is a deficient number, since it is larger than the sum of its proper divisors (97219234).

101820446 is a wasteful number, since it uses less digits than its factorization.

101820446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32948.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 101820446 is about 10090.6117753088. The cubic root of 101820446 is about 466.9585499391.

Adding to 101820446 its reverse (644028101), we get a palindrome (745848547).

The spelling of 101820446 in words is "one hundred one million, eight hundred twenty thousand, four hundred forty-six".