20064290 has 8 divisors (see below), whose sum is σ = 36115740. Its totient is φ = 8025712.

The previous prime is 20064281. The next prime is 20064311. The reversal of 20064290 is 9246002.

It can be written as a sum of positive squares in 2 ways, for example, as 18292729 + 1771561 = 4277^2 + 1331^2 .

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

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, 1003205 + ... + 1003224.

Almost surely, 2^20064290 is an apocalyptic number.

20064290 is a deficient number, since it is larger than the sum of its proper divisors (16051450).

20064290 is a wasteful number, since it uses less digits than its factorization.

20064290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006436.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 20064290 is about 4479.3180284503. The cubic root of 20064290 is about 271.7323004169.

The spelling of 20064290 in words is "twenty million, sixty-four thousand, two hundred ninety".