103978188 has 48 divisors (see below), whose sum is σ = 285435360. Its totient is φ = 32620032.

The previous prime is 103978181. The next prime is 103978201. The reversal of 103978188 is 881879301.

It is a super-2 number, since 2×103978188² = 21622927159526688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103978181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26481 + ... + 30152.

It is an arithmetic number, because the mean of its divisors is an integer number (5946570).

Almost surely, 2^103978188 is an apocalyptic number.

103978188 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

103978188 is an abundant number, since it is smaller than the sum of its proper divisors (181457172).

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

103978188 is a wasteful number, since it uses less digits than its factorization.

103978188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56663 (or 56655 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The square root of 103978188 is about 10196.9695498221. The cubic root of 103978188 is about 470.2340587633.

The spelling of 103978188 in words is "one hundred three million, nine hundred seventy-eight thousand, one hundred eighty-eight".