20411258 has 16 divisors (see below), whose sum is σ = 36512640. Its totient is φ = 8367216.

The previous prime is 20411249. The next prime is 20411267. The reversal of 20411258 is 85211402.

It is an interprime number because it is at equal distance from previous prime (20411249) and next prime (20411267).

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 31373 + ... + 32016.

It is an arithmetic number, because the mean of its divisors is an integer number (2282040).

Almost surely, 2^20411258 is an apocalyptic number.

20411258 is a deficient number, since it is larger than the sum of its proper divisors (16101382).

20411258 is a wasteful number, since it uses less digits than its factorization.

20411258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63421.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 20411258 is about 4517.8820259055. The cubic root of 20411258 is about 273.2896959222.

The spelling of 20411258 in words is "twenty million, four hundred eleven thousand, two hundred fifty-eight".