143400456 has 80 divisors (see below), whose sum is σ = 412578540. Its totient is φ = 46500480.

The previous prime is 143400443. The next prime is 143400461. The reversal of 143400456 is 654004341.

It can be written as a sum of positive squares in 2 ways, for example, as 142420356 + 980100 = 11934^2 + 990^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20986 + ... + 26966.

Almost surely, 2^143400456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143400456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206289270).

143400456 is an abundant number, since it is smaller than the sum of its proper divisors (269178084).

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

143400456 is a wasteful number, since it uses less digits than its factorization.

143400456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6036 (or 6023 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 143400456 is about 11974.9929436305. The cubic root of 143400456 is about 523.4198364949.

Adding to 143400456 its reverse (654004341), we get a palindrome (797404797).

The spelling of 143400456 in words is "one hundred forty-three million, four hundred thousand, four hundred fifty-six".