74386772 has 12 divisors (see below), whose sum is σ = 132633396. Its totient is φ = 36491520.

The previous prime is 74386733. The next prime is 74386777. The reversal of 74386772 is 27768347.

It can be written as a sum of positive squares in 2 ways, for example, as 65836996 + 8549776 = 8114^2 + 2924^2 .

It is a super-3 number, since 3×74386772³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74386777) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 175229 + ... + 175652.

It is an arithmetic number, because the mean of its divisors is an integer number (11052783).

Almost surely, 2^74386772 is an apocalyptic number.

It is an amenable number.

74386772 is a deficient number, since it is larger than the sum of its proper divisors (58246624).

74386772 is a wasteful number, since it uses less digits than its factorization.

74386772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350938 (or 350936 counting only the distinct ones).

The product of its digits is 395136, while the sum is 44.

The square root of 74386772 is about 8624.7766347889. The cubic root of 74386772 is about 420.5638157250.

The spelling of 74386772 in words is "seventy-four million, three hundred eighty-six thousand, seven hundred seventy-two".