20402632462 has 24 divisors (see below), whose sum is σ = 31665157776. Its totient is φ = 9853560000.

The previous prime is 20402632451. The next prime is 20402632469. The reversal of 20402632462 is 26423620402.

It is a happy number.

It is a super-2 number, since 2×20402632462² (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 (20402632469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 824287 + ... + 848677.

It is an arithmetic number, because the mean of its divisors is an integer number (1319381574).

Almost surely, 2^20402632462 is an apocalyptic number.

20402632462 is a deficient number, since it is larger than the sum of its proper divisors (11262525314).

20402632462 is a wasteful number, since it uses less digits than its factorization.

20402632462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24636 (or 24535 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

It can be divided in two parts, 20402 and 632462, that added together give a square (652864 = 808²).

The spelling of 20402632462 in words is "twenty billion, four hundred two million, six hundred thirty-two thousand, four hundred sixty-two".