16419998 has 24 divisors (see below), whose sum is σ = 28883952. Its totient is φ = 6980064.

The previous prime is 16419989. The next prime is 16420007. The reversal of 16419998 is 89991461.

It is an interprime number because it is at equal distance from previous prime (16419989) and next prime (16420007).

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, 12815 + ... + 14037.

It is an arithmetic number, because the mean of its divisors is an integer number (1203498).

Almost surely, 2^16419998 is an apocalyptic number.

16419998 is a deficient number, since it is larger than the sum of its proper divisors (12463954).

16419998 is a wasteful number, since it uses less digits than its factorization.

16419998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376 (or 1369 counting only the distinct ones).

The product of its digits is 139968, while the sum is 47.

The square root of 16419998 is about 4052.1596710890. The cubic root of 16419998 is about 254.1700454745.

The spelling of 16419998 in words is "sixteen million, four hundred nineteen thousand, nine hundred ninety-eight".