143896720 has 80 divisors (see below), whose sum is σ = 368815680. Its totient is φ = 51776000.

The previous prime is 143896679. The next prime is 143896723. The reversal of 143896720 is 27698341.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143896723) 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, 88071 + ... + 89689.

It is an arithmetic number, because the mean of its divisors is an integer number (4610196).

Almost surely, 2^143896720 is an apocalyptic number.

143896720 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 143896720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184407840).

143896720 is an abundant number, since it is smaller than the sum of its proper divisors (224918960).

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

143896720 is a wasteful number, since it uses less digits than its factorization.

143896720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744 (or 1738 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 143896720 is about 11995.6958947783. The cubic root of 143896720 is about 524.0229386070.

The spelling of 143896720 in words is "one hundred forty-three million, eight hundred ninety-six thousand, seven hundred twenty".