103238640 has 60 divisors (see below), whose sum is σ = 346712184. Its totient is φ = 27530112.

The previous prime is 103238633. The next prime is 103238687. The reversal of 103238640 is 46832301.

It is a happy number.

103238640 is a `hidden beast` number, since 10 + 3 + 2 + 3 + 8 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent 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, 70974 + ... + 72413.

Almost surely, 2^103238640 is an apocalyptic number.

103238640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103238640 is an abundant number, since it is smaller than the sum of its proper divisors (243473544).

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

103238640 is a wasteful number, since it uses less digits than its factorization.

103238640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143406 (or 143397 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 103238640 is about 10160.6417120180. The cubic root of 103238640 is about 469.1165538203.

The spelling of 103238640 in words is "one hundred three million, two hundred thirty-eight thousand, six hundred forty".