140400000 has 384 divisors, whose sum is σ = 557776800. Its totient is φ = 34560000.

The previous prime is 140399993. The next prime is 140400019. The reversal of 140400000 is 4041.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10799994 + ... + 10800006.

Almost surely, 2^140400000 is an apocalyptic number.

140400000 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 140400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278888400).

140400000 is an abundant number, since it is smaller than the sum of its proper divisors (417376800).

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

140400000 is an frugal number, since it uses more digits than its factorization.

140400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 140400000 is about 11849.0505948789. The cubic root of 140400000 is about 519.7434632045.

Adding to 140400000 its reverse (4041), we get a palindrome (140404041).

The spelling of 140400000 in words is "one hundred forty million, four hundred thousand".