74143492 has 6 divisors (see below), whose sum is σ = 129751118. Its totient is φ = 37071744.

The previous prime is 74143483. The next prime is 74143499. The reversal of 74143492 is 29434147.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 39639616 + 34503876 = 6296^2 + 5874^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (74143499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9267933 + ... + 9267940.

Almost surely, 2^74143492 is an apocalyptic number.

It is an amenable number.

74143492 is a deficient number, since it is larger than the sum of its proper divisors (55607626).

74143492 is a wasteful number, since it uses less digits than its factorization.

74143492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18535877 (or 18535875 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 74143492 is about 8610.6615309162. The cubic root of 74143492 is about 420.1048339970.

The spelling of 74143492 in words is "seventy-four million, one hundred forty-three thousand, four hundred ninety-two".