20134033400 has 48 divisors (see below), whose sum is σ = 50412528600. Its totient is φ = 7434103680.

The previous prime is 20134033399. The next prime is 20134033433. The reversal of 20134033400 is 433043102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3869330 + ... + 3874529.

Almost surely, 2^20134033400 is an apocalyptic number.

20134033400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20134033400 is an abundant number, since it is smaller than the sum of its proper divisors (30278495200).

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

20134033400 is a wasteful number, since it uses less digits than its factorization.

20134033400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7743888 (or 7743879 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20134033400 its reverse (433043102), we get a palindrome (20567076502).

The spelling of 20134033400 in words is "twenty billion, one hundred thirty-four million, thirty-three thousand, four hundred".