20413757 has 8 divisors (see below), whose sum is σ = 25124736. Its totient is φ = 16151472.

The previous prime is 20413739. The next prime is 20413801. The reversal of 20413757 is 75731402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20413757 - 2¹⁴ = 20397373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20413157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112073 + ... + 112254.

It is an arithmetic number, because the mean of its divisors is an integer number (3140592).

Almost surely, 2^20413757 is an apocalyptic number.

It is an amenable number.

20413757 is a deficient number, since it is larger than the sum of its proper divisors (4710979).

20413757 is a wasteful number, since it uses less digits than its factorization.

20413757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224347.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 20413757 is about 4518.1585850875. The cubic root of 20413757 is about 273.3008486413.

The spelling of 20413757 in words is "twenty million, four hundred thirteen thousand, seven hundred fifty-seven".