72143804 has 12 divisors (see below), whose sum is σ = 126318528. Its totient is φ = 36052800.

The previous prime is 72143803. The next prime is 72143807. The reversal of 72143804 is 40834127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72143803) 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, 6884 + ... + 13844.

It is an arithmetic number, because the mean of its divisors is an integer number (10526544).

Almost surely, 2^72143804 is an apocalyptic number.

It is an amenable number.

72143804 is a deficient number, since it is larger than the sum of its proper divisors (54174724).

72143804 is a wasteful number, since it uses less digits than its factorization.

72143804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9556 (or 9554 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 72143804 is about 8493.7508793230. The cubic root of 72143804 is about 416.2935474344.

The spelling of 72143804 in words is "seventy-two million, one hundred forty-three thousand, eight hundred four".