20372001 has 16 divisors (see below), whose sum is σ = 30973824. Its totient is φ = 11798784.

The previous prime is 20371999. The next prime is 20372029. The reversal of 20372001 is 10027302.

It is not a de Polignac number, because 20372001 - 2¹ = 20371999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20372071) 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, 14701 + ... + 16026.

It is an arithmetic number, because the mean of its divisors is an integer number (1935864).

Almost surely, 2^20372001 is an apocalyptic number.

It is an amenable number.

20372001 is a deficient number, since it is larger than the sum of its proper divisors (10601823).

20372001 is a wasteful number, since it uses less digits than its factorization.

20372001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30760.

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

The square root of 20372001 is about 4513.5353105963. The cubic root of 20372001 is about 273.1143773305.

Adding to 20372001 its reverse (10027302), we get a palindrome (30399303).

The spelling of 20372001 in words is "twenty million, three hundred seventy-two thousand, one".