143716428 has 18 divisors (see below), whose sum is σ = 363283284. Its totient is φ = 47905464.

The previous prime is 143716411. The next prime is 143716429. The reversal of 143716428 is 824617341.

143716428 is a `hidden beast` number, since 1 + 4 + 3 + 7 + 1 + 642 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3992123 = 143716428 / (1 + 4 + 3 + 7 + 1 + 6 + 4 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 143716392 and 143716401.

It is not an unprimeable number, because it can be changed into a prime (143716429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1996026 + ... + 1996097.

Almost surely, 2^143716428 is an apocalyptic number.

143716428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

143716428 is an abundant number, since it is smaller than the sum of its proper divisors (219566856).

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

143716428 is a wasteful number, since it uses less digits than its factorization.

143716428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3992133 (or 3992128 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 143716428 is about 11988.1786773471. The cubic root of 143716428 is about 523.8039930818.

The spelling of 143716428 in words is "one hundred forty-three million, seven hundred sixteen thousand, four hundred twenty-eight".