74027540 has 12 divisors (see below), whose sum is σ = 155457876. Its totient is φ = 29611008.

The previous prime is 74027533. The next prime is 74027561. The reversal of 74027540 is 4572047.

It can be written as a sum of positive squares in 2 ways, for example, as 45104656 + 28922884 = 6716^2 + 5378^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1850669 + ... + 1850708.

It is an arithmetic number, because the mean of its divisors is an integer number (12954823).

Almost surely, 2^74027540 is an apocalyptic number.

It is an amenable number.

74027540 is an abundant number, since it is smaller than the sum of its proper divisors (81430336).

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

74027540 is a wasteful number, since it uses less digits than its factorization.

74027540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701386 (or 3701384 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 74027540 is about 8603.9258481231. The cubic root of 74027540 is about 419.8857209869.

Adding to 74027540 its reverse (4572047), we get a palindrome (78599587).

The spelling of 74027540 in words is "seventy-four million, twenty-seven thousand, five hundred forty".