20273390 has 16 divisors (see below), whose sum is σ = 36575280. Its totient is φ = 8090880.

The previous prime is 20273371. The next prime is 20273413. The reversal of 20273390 is 9337202.

It is a super-2 number, since 2×20273390² = 822020684184200, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2846 + ... + 6974.

It is an arithmetic number, because the mean of its divisors is an integer number (2285955).

Almost surely, 2^20273390 is an apocalyptic number.

20273390 is a deficient number, since it is larger than the sum of its proper divisors (16301890).

20273390 is a wasteful number, since it uses less digits than its factorization.

20273390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4627.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 20273390 is about 4502.5981388527. The cubic root of 20273390 is about 272.6729928676.

The spelling of 20273390 in words is "twenty million, two hundred seventy-three thousand, three hundred ninety".