143072400 has 60 divisors (see below), whose sum is σ = 458312432. Its totient is φ = 38152320.

The previous prime is 143072393. The next prime is 143072401. The reversal of 143072400 is 4270341.

It is a tau number, because it is divible by the number of its divisors (60).

It is not an unprimeable number, because it can be changed into a prime (143072401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58414 + ... + 60813.

Almost surely, 2^143072400 is an apocalyptic number.

143072400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143072400 is an abundant number, since it is smaller than the sum of its proper divisors (315240032).

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

143072400 is a wasteful number, since it uses less digits than its factorization.

143072400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119248 (or 119237 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 143072400 is about 11961.2875561120. The cubic root of 143072400 is about 523.0203907052.

The spelling of 143072400 in words is "one hundred forty-three million, seventy-two thousand, four hundred".