20002190 has 32 divisors (see below), whose sum is σ = 38991456. Its totient is φ = 7344000.

The previous prime is 20002189. The next prime is 20002201. The reversal of 20002190 is 9120002.

It is a super-2 number, since 2×20002190² = 800175209592200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32324 + ... + 32936.

It is an arithmetic number, because the mean of its divisors is an integer number (1218483).

Almost surely, 2^20002190 is an apocalyptic number.

20002190 is a deficient number, since it is larger than the sum of its proper divisors (18989266).

20002190 is a wasteful number, since it uses less digits than its factorization.

20002190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 20002190 is about 4472.3807977407. The cubic root of 20002190 is about 271.4516689222.

Adding to 20002190 its reverse (9120002), we get a palindrome (29122192).

The spelling of 20002190 in words is "twenty million, two thousand, one hundred ninety".