74851930 has 8 divisors (see below), whose sum is σ = 134733492. Its totient is φ = 29940768.

The previous prime is 74851927. The next prime is 74851939. The reversal of 74851930 is 3915847.

It can be written as a sum of positive squares in 2 ways, for example, as 60419529 + 14432401 = 7773^2 + 3799^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×74851930² = 11205622849449800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74851930.

It is not an unprimeable number, because it can be changed into a prime (74851939) 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, 3742587 + ... + 3742606.

Almost surely, 2^74851930 is an apocalyptic number.

74851930 is a deficient number, since it is larger than the sum of its proper divisors (59881562).

74851930 is a wasteful number, since it uses less digits than its factorization.

74851930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7485200.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 74851930 is about 8651.7009888229. The cubic root of 74851930 is about 421.4386229802.

The spelling of 74851930 in words is "seventy-four million, eight hundred fifty-one thousand, nine hundred thirty".