19940302 has 4 divisors (see below), whose sum is σ = 29910456. Its totient is φ = 9970150.

The previous prime is 19940293. The next prime is 19940321. The reversal of 19940302 is 20304991.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4985074 + ... + 4985077.

It is an arithmetic number, because the mean of its divisors is an integer number (7477614).

Almost surely, 2^19940302 is an apocalyptic number.

19940302 is a deficient number, since it is larger than the sum of its proper divisors (9970154).

19940302 is an equidigital number, since it uses as much as digits as its factorization.

19940302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9970153.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 19940302 is about 4465.4565276128. The cubic root of 19940302 is about 271.1714169921.

The spelling of 19940302 in words is "nineteen million, nine hundred forty thousand, three hundred two".