103640994 has 24 divisors (see below), whose sum is σ = 224744832. Its totient is φ = 34517880.

The previous prime is 103640987. The next prime is 103641007. The reversal of 103640994 is 499046301.

103640994 is a `hidden beast` number, since 1 + 0 + 3 + 640 + 9 + 9 + 4 = 666.

It is a super-3 number, since 3×103640994³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35739 + ... + 38529.

It is an arithmetic number, because the mean of its divisors is an integer number (9364368).

Almost surely, 2^103640994 is an apocalyptic number.

103640994 is an abundant number, since it is smaller than the sum of its proper divisors (121103838).

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

103640994 is a wasteful number, since it uses less digits than its factorization.

103640994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4862 (or 4859 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 103640994 is about 10180.4220934105. The cubic root of 103640994 is about 469.7251962300.

The spelling of 103640994 in words is "one hundred three million, six hundred forty thousand, nine hundred ninety-four".