102478446 has 64 divisors (see below), whose sum is σ = 263554560. Its totient is φ = 29270808.

The previous prime is 102478429. The next prime is 102478447. The reversal of 102478446 is 644874201.

It is a self number, because there is not a number n which added to its sum of digits gives 102478446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102478447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28945 + ... + 32291.

It is an arithmetic number, because the mean of its divisors is an integer number (4118040).

Almost surely, 2^102478446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102478446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131777280).

102478446 is an abundant number, since it is smaller than the sum of its proper divisors (161076114).

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

102478446 is an frugal number, since it uses more digits than its factorization.

102478446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377 (or 3359 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 102478446 is about 10123.1638335058. The cubic root of 102478446 is about 467.9622750656.

The spelling of 102478446 in words is "one hundred two million, four hundred seventy-eight thousand, four hundred forty-six".