134240220400 has 120 divisors (see below), whose sum is σ = 378895530384. Its totient is φ = 45059635200.

The previous prime is 134240220377. The next prime is 134240220431. The reversal of 134240220400 is 4022042431.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1116229 + ... + 1230628.

Almost surely, 2^134240220400 is an apocalyptic number.

134240220400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134240220400 is an abundant number, since it is smaller than the sum of its proper divisors (244655309984).

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

134240220400 is a wasteful number, since it uses less digits than its factorization.

134240220400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346899 (or 2346888 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 134240220400 its reverse (4022042431), we get a palindrome (138262262831).

The spelling of 134240220400 in words is "one hundred thirty-four billion, two hundred forty million, two hundred twenty thousand, four hundred".