101443340 has 24 divisors (see below), whose sum is σ = 222294240. Its totient is φ = 38812928.

The previous prime is 101443327. The next prime is 101443351. The reversal of 101443340 is 43344101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 109805 + ... + 110724.

It is an arithmetic number, because the mean of its divisors is an integer number (9262260).

Almost surely, 2^101443340 is an apocalyptic number.

101443340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101443340 is an abundant number, since it is smaller than the sum of its proper divisors (120850900).

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

101443340 is a wasteful number, since it uses less digits than its factorization.

101443340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220561 (or 220559 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 101443340 is about 10071.9084586785. The cubic root of 101443340 is about 466.3813550796.

Adding to 101443340 its reverse (43344101), we get a palindrome (144787441).

The spelling of 101443340 in words is "one hundred one million, four hundred forty-three thousand, three hundred forty".