101944390 has 16 divisors (see below), whose sum is σ = 183845232. Its totient is φ = 40701024.

The previous prime is 101944379. The next prime is 101944397. The reversal of 101944390 is 93449101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101944397) 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 7 ways as a sum of consecutive naturals, for example, 3849 + ... + 14788.

It is an arithmetic number, because the mean of its divisors is an integer number (11490327).

Almost surely, 2^101944390 is an apocalyptic number.

101944390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101944390 is a deficient number, since it is larger than the sum of its proper divisors (81900842).

101944390 is a wasteful number, since it uses less digits than its factorization.

101944390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19191.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 101944390 is about 10096.7514577710. The cubic root of 101944390 is about 467.1479462231.

The spelling of 101944390 in words is "one hundred one million, nine hundred forty-four thousand, three hundred ninety".