143890960 has 20 divisors (see below), whose sum is σ = 334546668. Its totient is φ = 57556352.

The previous prime is 143890951. The next prime is 143890961. The reversal of 143890960 is 69098341.

It can be written as a sum of positive squares in 2 ways, for example, as 72522256 + 71368704 = 8516^2 + 8448^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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

It is not an unprimeable number, because it can be changed into a prime (143890961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 899239 + ... + 899398.

Almost surely, 2^143890960 is an apocalyptic number.

143890960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143890960 is an abundant number, since it is smaller than the sum of its proper divisors (190655708).

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

143890960 is a wasteful number, since it uses less digits than its factorization.

143890960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798650 (or 1798644 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 143890960 is about 11995.4558062626. The cubic root of 143890960 is about 524.0159465263.

The spelling of 143890960 in words is "one hundred forty-three million, eight hundred ninety thousand, nine hundred sixty".