102690448 has 20 divisors (see below), whose sum is σ = 227386240. Its totient is φ = 44010144.

The previous prime is 102690443. The next prime is 102690449. The reversal of 102690448 is 844096201.

It is a super-2 number, since 2×102690448² = 21090656220881408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102690443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458328 + ... + 458551.

It is an arithmetic number, because the mean of its divisors is an integer number (11369312).

Almost surely, 2^102690448 is an apocalyptic number.

It is an amenable number.

102690448 is an abundant number, since it is smaller than the sum of its proper divisors (124695792).

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

102690448 is an equidigital number, since it uses as much as digits as its factorization.

102690448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916894 (or 916888 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 102690448 is about 10133.6295570738. The cubic root of 102690448 is about 468.2847513452.

The spelling of 102690448 in words is "one hundred two million, six hundred ninety thousand, four hundred forty-eight".