143920476 has 240 divisors, whose sum is σ = 468357120. Its totient is φ = 37635840.

The previous prime is 143920471. The next prime is 143920477. The reversal of 143920476 is 674029341.

143920476 = T₃₄₄ + T₃₄₅ + ... + T₉₆₆.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 143920476.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143920471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1617040 + ... + 1617128.

It is an arithmetic number, because the mean of its divisors is an integer number (1951488).

Almost surely, 2^143920476 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 143920476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234178560).

143920476 is an abundant number, since it is smaller than the sum of its proper divisors (324436644).

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

143920476 is a wasteful number, since it uses less digits than its factorization.

143920476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 143920476 is about 11996.6860424035. The cubic root of 143920476 is about 524.0517741124.

The spelling of 143920476 in words is "one hundred forty-three million, nine hundred twenty thousand, four hundred seventy-six".