20402006262 has 48 divisors (see below), whose sum is σ = 45294920496. Its totient is φ = 6121192000.

The previous prime is 20402006237. The next prime is 20402006263. The reversal of 20402006262 is 26260020402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20402006263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65793 + ... + 212444.

It is an arithmetic number, because the mean of its divisors is an integer number (943644177).

Almost surely, 2^20402006262 is an apocalyptic number.

20402006262 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20402006262 is an abundant number, since it is smaller than the sum of its proper divisors (24892914234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20402006262 is a wasteful number, since it uses less digits than its factorization.

20402006262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278365 (or 278354 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20402006262 its reverse (26260020402), we get a palindrome (46662026664).

The spelling of 20402006262 in words is "twenty billion, four hundred two million, six thousand, two hundred sixty-two".