20420202462 has 32 divisors (see below), whose sum is σ = 46898075520. Its totient is φ = 5862258720.

The previous prime is 20420202449. The next prime is 20420202469. The reversal of 20420202462 is 26420202402.

It is a super-2 number, since 2×20420202462² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20420202469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8140773 + ... + 8143280.

It is an arithmetic number, because the mean of its divisors is an integer number (1465564860).

Almost surely, 2^20420202462 is an apocalyptic number.

20420202462 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20420202462 is an abundant number, since it is smaller than the sum of its proper divisors (26477873058).

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

20420202462 is a wasteful number, since it uses less digits than its factorization.

20420202462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16284088.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20420202462 its reverse (26420202402), we get a palindrome (46840404864).

The spelling of 20420202462 in words is "twenty billion, four hundred twenty million, two hundred two thousand, four hundred sixty-two".