101420444 has 12 divisors (see below), whose sum is σ = 177797424. Its totient is φ = 50621184.

The previous prime is 101420443. The next prime is 101420471. The reversal of 101420444 is 444024101.

It is a happy number.

It is a super-2 number, since 2×101420444² = 20572212922314272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101420443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19664 + ... + 24279.

It is an arithmetic number, because the mean of its divisors is an integer number (14816452).

Almost surely, 2^101420444 is an apocalyptic number.

It is an amenable number.

101420444 is a deficient number, since it is larger than the sum of its proper divisors (76376980).

101420444 is a wasteful number, since it uses less digits than its factorization.

101420444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44524 (or 44522 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 101420444 is about 10070.7717678438. The cubic root of 101420444 is about 466.3462646506.

Adding to 101420444 its reverse (444024101), we get a palindrome (545444545).

The spelling of 101420444 in words is "one hundred one million, four hundred twenty thousand, four hundred forty-four".