20401262 has 16 divisors (see below), whose sum is σ = 35303040. Its totient is φ = 8661048.

The previous prime is 20401223. The next prime is 20401273. The reversal of 20401262 is 26210402.

It is a super-2 number, since 2×20401262² = 832422982385288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20401262.

It is a congruent number.

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, 5312 + ... + 8307.

It is an arithmetic number, because the mean of its divisors is an integer number (2206440).

Almost surely, 2^20401262 is an apocalyptic number.

20401262 is a deficient number, since it is larger than the sum of its proper divisors (14901778).

20401262 is a wasteful number, since it uses less digits than its factorization.

20401262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13735.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20401262 is about 4516.7756198421. The cubic root of 20401262 is about 273.2450759406.

Adding to 20401262 its reverse (26210402), we get a palindrome (46611664).

The spelling of 20401262 in words is "twenty million, four hundred one thousand, two hundred sixty-two".