19964002 has 8 divisors (see below), whose sum is σ = 30583296. Its totient is φ = 9769572.

The previous prime is 19963981. The next prime is 19964029. The reversal of 19964002 is 20046991.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×19964002² = 797122751712008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106098 + ... + 106285.

It is an arithmetic number, because the mean of its divisors is an integer number (3822912).

Almost surely, 2^19964002 is an apocalyptic number.

19964002 is a deficient number, since it is larger than the sum of its proper divisors (10619294).

19964002 is a wasteful number, since it uses less digits than its factorization.

19964002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212432.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 19964002 is about 4468.1094436014. The cubic root of 19964002 is about 271.2788078446.

The spelling of 19964002 in words is "nineteen million, nine hundred sixty-four thousand, two".