74871424 has 32 divisors (see below), whose sum is σ = 153198900. Its totient is φ = 36421632.

The previous prime is 74871403. The next prime is 74871437. The reversal of 74871424 is 42417847.

It can be written as a sum of positive squares in 2 ways, for example, as 74511424 + 360000 = 8632^2 + 600^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3169 + ... + 12640.

Almost surely, 2^74871424 is an apocalyptic number.

74871424 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

74871424 is an abundant number, since it is smaller than the sum of its proper divisors (78327476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74871424 is a wasteful number, since it uses less digits than its factorization.

74871424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15860 (or 15848 counting only the distinct ones).

The product of its digits is 50176, while the sum is 37.

The square root of 74871424 is about 8652.8275147492. The cubic root of 74871424 is about 421.4752054768.

It can be divided in two parts, 7487 and 1424, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 74871424 in words is "seventy-four million, eight hundred seventy-one thousand, four hundred twenty-four".