101443240 has 32 divisors (see below), whose sum is σ = 228813480. Its totient is φ = 40476672.

The previous prime is 101443231. The next prime is 101443241. The reversal of 101443240 is 42344101.

It can be written as a sum of positive squares in 4 ways, for example, as 85266756 + 16176484 = 9234^2 + 4022^2 .

It is not an unprimeable number, because it can be changed into a prime (101443241) 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 7 ways as a sum of consecutive naturals, for example, 14392 + ... + 20248.

Almost surely, 2^101443240 is an apocalyptic number.

101443240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101443240 is an abundant number, since it is smaller than the sum of its proper divisors (127370240).

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

101443240 is a wasteful number, since it uses less digits than its factorization.

101443240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6301 (or 6297 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 101443240 is about 10071.9034943748. The cubic root of 101443240 is about 466.3812018310.

Adding to 101443240 its reverse (42344101), we get a palindrome (143787341).

The spelling of 101443240 in words is "one hundred one million, four hundred forty-three thousand, two hundred forty".