20707401 has 48 divisors (see below), whose sum is σ = 33730560. Its totient is φ = 11194560.

The previous prime is 20707387. The next prime is 20707403. The reversal of 20707401 is 10470702.

It is not a de Polignac number, because 20707401 - 2⁵ = 20707369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20707403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 262080 + ... + 262158.

It is an arithmetic number, because the mean of its divisors is an integer number (702720).

Almost surely, 2^20707401 is an apocalyptic number.

It is an amenable number.

20707401 is a deficient number, since it is larger than the sum of its proper divisors (13023159).

20707401 is a wasteful number, since it uses less digits than its factorization.

20707401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 20707401 is about 4550.5385395577. The cubic root of 20707401 is about 274.6050573150.

The spelling of 20707401 in words is "twenty million, seven hundred seven thousand, four hundred one".