74778482 has 4 divisors (see below), whose sum is σ = 112167726. Its totient is φ = 37389240.

The previous prime is 74778467. The next prime is 74778533. The reversal of 74778482 is 28487747.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28487747 = 251 ⋅113497.

It can be written as a sum of positive squares in only one way, i.e., 49688401 + 25090081 = 7049^2 + 5009^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18694619 + ... + 18694622.

Almost surely, 2^74778482 is an apocalyptic number.

74778482 is a deficient number, since it is larger than the sum of its proper divisors (37389244).

74778482 is a wasteful number, since it uses less digits than its factorization.

74778482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37389243.

The product of its digits is 702464, while the sum is 47.

The square root of 74778482 is about 8647.4552326103. The cubic root of 74778482 is about 421.3007331760.

The spelling of 74778482 in words is "seventy-four million, seven hundred seventy-eight thousand, four hundred eighty-two".