102890446 has 4 divisors (see below), whose sum is σ = 154335672. Its totient is φ = 51445222.

The previous prime is 102890429. The next prime is 102890449. The reversal of 102890446 is 644098201.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102890449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25722610 + ... + 25722613.

It is an arithmetic number, because the mean of its divisors is an integer number (38583918).

Almost surely, 2^102890446 is an apocalyptic number.

102890446 is a deficient number, since it is larger than the sum of its proper divisors (51445226).

102890446 is an equidigital number, since it uses as much as digits as its factorization.

102890446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51445225.

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

The square root of 102890446 is about 10143.4927909473. The cubic root of 102890446 is about 468.5885617460.

The spelling of 102890446 in words is "one hundred two million, eight hundred ninety thousand, four hundred forty-six".