20748002 has 8 divisors (see below), whose sum is σ = 33951312. Its totient is φ = 9430900.

The previous prime is 20747983. The next prime is 20748017. The reversal of 20748002 is 20084702.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471524 + ... + 471567.

It is an arithmetic number, because the mean of its divisors is an integer number (4243914).

Almost surely, 2^20748002 is an apocalyptic number.

20748002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20748002 is a deficient number, since it is larger than the sum of its proper divisors (13203310).

20748002 is a wasteful number, since it uses less digits than its factorization.

20748002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943104.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 20748002 is about 4554.9974753012. The cubic root of 20748002 is about 274.7844128521.

Adding to 20748002 its sum of digits (23), we get a square (20748025 = 4555²).

The spelling of 20748002 in words is "twenty million, seven hundred forty-eight thousand, two".