20199416 has 8 divisors (see below), whose sum is σ = 37873920. Its totient is φ = 10099704.

The previous prime is 20199409. The next prime is 20199427. The reversal of 20199416 is 61499102.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262456 + ... + 1262471.

It is an arithmetic number, because the mean of its divisors is an integer number (4734240).

Almost surely, 2^20199416 is an apocalyptic number.

It is an amenable number.

20199416 is a deficient number, since it is larger than the sum of its proper divisors (17674504).

20199416 is a wasteful number, since it uses less digits than its factorization.

20199416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524933 (or 2524929 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 20199416 is about 4494.3760412320. The cubic root of 20199416 is about 272.3409435665.

The spelling of 20199416 in words is "twenty million, one hundred ninety-nine thousand, four hundred sixteen".