102338440 has 32 divisors (see below), whose sum is σ = 237692160. Its totient is φ = 39614400.

The previous prime is 102338429. The next prime is 102338449. The reversal of 102338440 is 44833201.

102338440 = 2605² + 2606² + ... + 2619².

It is a super-3 number, since 3×102338440³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (102338449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40026 + ... + 42505.

It is an arithmetic number, because the mean of its divisors is an integer number (7427880).

Almost surely, 2^102338440 is an apocalyptic number.

102338440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102338440 is an abundant number, since it is smaller than the sum of its proper divisors (135353720).

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

102338440 is a wasteful number, since it uses less digits than its factorization.

102338440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82573 (or 82569 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 102338440 is about 10116.2463394285. The cubic root of 102338440 is about 467.7490680022.

The spelling of 102338440 in words is "one hundred two million, three hundred thirty-eight thousand, four hundred forty".