16980038 has 4 divisors (see below), whose sum is σ = 25470060. Its totient is φ = 8490018.

The previous prime is 16980037. The next prime is 16980083. The reversal of 16980038 is 83008961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83008961 = 7 ⋅11858423.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16980031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4245008 + ... + 4245011.

It is an arithmetic number, because the mean of its divisors is an integer number (6367515).

Almost surely, 2^16980038 is an apocalyptic number.

16980038 is a deficient number, since it is larger than the sum of its proper divisors (8490022).

16980038 is an equidigital number, since it uses as much as digits as its factorization.

16980038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8490021.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 16980038 is about 4120.6841664947. The cubic root of 16980038 is about 257.0274766608.

Adding to 16980038 its reverse (83008961), we get a palindrome (99988999).

The spelling of 16980038 in words is "sixteen million, nine hundred eighty thousand, thirty-eight".