20190746 has 8 divisors (see below), whose sum is σ = 30651264. Its totient is φ = 9973660.

The previous prime is 20190743. The next prime is 20190763. The reversal of 20190746 is 64709102.

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

It is not an unprimeable number, because it can be changed into a prime (20190743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60650 + ... + 60981.

It is an arithmetic number, because the mean of its divisors is an integer number (3831408).

Almost surely, 2^20190746 is an apocalyptic number.

20190746 is a deficient number, since it is larger than the sum of its proper divisors (10460518).

20190746 is a wasteful number, since it uses less digits than its factorization.

20190746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121716.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 20190746 is about 4493.4113989262. The cubic root of 20190746 is about 272.3019732338.

Adding to 20190746 its reverse (64709102), we get a palindrome (84899848).

The spelling of 20190746 in words is "twenty million, one hundred ninety thousand, seven hundred forty-six".