1400344000 has 112 divisors (see below), whose sum is σ = 3783458016. Its totient is φ = 509184000.

The previous prime is 1400343979. The next prime is 1400344007. The reversal of 1400344000 is 4430041.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400344007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80044 + ... + 95956.

Almost surely, 2^1400344000 is an apocalyptic number.

1400344000 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 1400344000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1891729008).

1400344000 is an abundant number, since it is smaller than the sum of its proper divisors (2383114016).

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

1400344000 is a wasteful number, since it uses less digits than its factorization.

1400344000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15951 (or 15931 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1400344000 is about 37421.1704787544. The cubic root of 1400344000 is about 1118.7805605293.

Adding to 1400344000 its reverse (4430041), we get a palindrome (1404774041).

The spelling of 1400344000 in words is "one billion, four hundred million, three hundred forty-four thousand".