20273001 has 16 divisors (see below), whose sum is σ = 31958400. Its totient is φ = 11184768.

The previous prime is 20272997. The next prime is 20273017. The reversal of 20273001 is 10037202.

It is not a de Polignac number, because 20273001 - 2² = 20272997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20273021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16036 + ... + 17253.

It is an arithmetic number, because the mean of its divisors is an integer number (1997400).

Almost surely, 2^20273001 is an apocalyptic number.

20273001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20273001 is a deficient number, since it is larger than the sum of its proper divisors (11685399).

20273001 is a wasteful number, since it uses less digits than its factorization.

20273001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33328.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 20273001 is about 4502.5549413638. The cubic root of 20273001 is about 272.6712488661.

The spelling of 20273001 in words is "twenty million, two hundred seventy-three thousand, one".