74861240 has 16 divisors (see below), whose sum is σ = 168437880. Its totient is φ = 29944480.

The previous prime is 74861233. The next prime is 74861261. The reversal of 74861240 is 4216847.

It is a junction number, because it is equal to n+sod(n) for n = 74861197 and 74861206.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 935726 + ... + 935805.

Almost surely, 2^74861240 is an apocalyptic number.

It is an amenable number.

74861240 is an abundant number, since it is smaller than the sum of its proper divisors (93576640).

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

74861240 is a wasteful number, since it uses less digits than its factorization.

74861240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871542 (or 1871538 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 74861240 is about 8652.2390165783. The cubic root of 74861240 is about 421.4560949453.

The spelling of 74861240 in words is "seventy-four million, eight hundred sixty-one thousand, two hundred forty".