103442140 has 12 divisors (see below), whose sum is σ = 217228536. Its totient is φ = 41376848.

The previous prime is 103442123. The next prime is 103442149. The reversal of 103442140 is 41244301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103442149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2586034 + ... + 2586073.

It is an arithmetic number, because the mean of its divisors is an integer number (18102378).

Almost surely, 2^103442140 is an apocalyptic number.

103442140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103442140 is an abundant number, since it is smaller than the sum of its proper divisors (113786396).

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

103442140 is a wasteful number, since it uses less digits than its factorization.

103442140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5172116 (or 5172114 counting only the distinct ones).

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

The square root of 103442140 is about 10170.6509132897. The cubic root of 103442140 is about 469.4245862958.

Adding to 103442140 its reverse (41244301), we get a palindrome (144686441).

The spelling of 103442140 in words is "one hundred three million, four hundred forty-two thousand, one hundred forty".