1400443000 has 128 divisors (see below), whose sum is σ = 3785745600. Its totient is φ = 479232000.

The previous prime is 1400442997. The next prime is 1400443019. The reversal of 1400443000 is 3440041.

It is a super-2 number, since 2×1400443000² = 3922481192498000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183256 + ... + 190744.

Almost surely, 2^1400443000 is an apocalyptic number.

1400443000 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 1400443000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1892872800).

1400443000 is an abundant number, since it is smaller than the sum of its proper divisors (2385302600).

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

1400443000 is a wasteful number, since it uses less digits than its factorization.

1400443000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7538 (or 7524 counting only the distinct ones).

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

The square root of 1400443000 is about 37422.4932360205. The cubic root of 1400443000 is about 1118.8069246859.

Adding to 1400443000 its reverse (3440041), we get a palindrome (1403883041).

The spelling of 1400443000 in words is "one billion, four hundred million, four hundred forty-three thousand".