20402254214 has 8 divisors (see below), whose sum is σ = 30900501840. Its totient is φ = 10102086936.

The previous prime is 20402254151. The next prime is 20402254277. The reversal of 20402254214 is 41245220402.

It is an interprime number because it is at equal distance from previous prime (20402254151) and next prime (20402254277).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49519829 + ... + 49520240.

It is an arithmetic number, because the mean of its divisors is an integer number (3862562730).

Almost surely, 2^20402254214 is an apocalyptic number.

20402254214 is a deficient number, since it is larger than the sum of its proper divisors (10498247626).

20402254214 is a wasteful number, since it uses less digits than its factorization.

20402254214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99040174.

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 20402254214 its reverse (41245220402), we get a palindrome (61647474616).

The spelling of 20402254214 in words is "twenty billion, four hundred two million, two hundred fifty-four thousand, two hundred fourteen".