1400134400 has 108 divisors (see below), whose sum is σ = 3960756912. Its totient is φ = 480030720.

The previous prime is 1400134397. The next prime is 1400134423. The reversal of 1400134400 is 44310041.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29174 + ... + 60426.

Almost surely, 2^1400134400 is an apocalyptic number.

1400134400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400134400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1980378456).

1400134400 is an abundant number, since it is smaller than the sum of its proper divisors (2560622512).

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

1400134400 is an equidigital number, since it uses as much as digits as its factorization.

1400134400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31286 (or 31267 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1400134400 is about 37418.3698201832. The cubic root of 1400134400 is about 1118.7247389821.

Adding to 1400134400 its reverse (44310041), we get a palindrome (1444444441).

The spelling of 1400134400 in words is "one billion, four hundred million, one hundred thirty-four thousand, four hundred".