74286443 has 32 divisors (see below), whose sum is σ = 95800320. Its totient is φ = 55935360.

The previous prime is 74286439. The next prime is 74286463. The reversal of 74286443 is 34468247.

It is a cyclic number.

It is not a de Polignac number, because 74286443 - 2² = 74286439 is a prime.

It is a super-2 number, since 2×74286443² = 11036951227184498, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74286397 and 74286406.

It is not an unprimeable number, because it can be changed into a prime (74286463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 444746 + ... + 444912.

It is an arithmetic number, because the mean of its divisors is an integer number (2993760).

Almost surely, 2^74286443 is an apocalyptic number.

74286443 is a deficient number, since it is larger than the sum of its proper divisors (21513877).

74286443 is a wasteful number, since it uses less digits than its factorization.

74286443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347.

The product of its digits is 129024, while the sum is 38.

The square root of 74286443 is about 8618.9583477355. The cubic root of 74286443 is about 420.3746524720.

The spelling of 74286443 in words is "seventy-four million, two hundred eighty-six thousand, four hundred forty-three".