74040037 has 4 divisors (see below), whose sum is σ = 74537100. Its totient is φ = 73542976.

The previous prime is 74040019. The next prime is 74040047. The reversal of 74040037 is 73004047.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73004047 = 23 ⋅3174089.

It can be written as a sum of positive squares in 2 ways, for example, as 44435556 + 29604481 = 6666^2 + 5441^2 .

It is a cyclic number.

It is not a de Polignac number, because 74040037 - 2¹⁹ = 73515749 is a prime.

It is a super-2 number, since 2×74040037² = 10963854157922738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74039993 and 74040020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74040047) 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, 248308 + ... + 248605.

It is an arithmetic number, because the mean of its divisors is an integer number (18634275).

Almost surely, 2^74040037 is an apocalyptic number.

It is an amenable number.

74040037 is a deficient number, since it is larger than the sum of its proper divisors (497063).

74040037 is a wasteful number, since it uses less digits than its factorization.

74040037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497062.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 74040037 is about 8604.6520557196. The cubic root of 74040037 is about 419.9093474040.

The spelling of 74040037 in words is "seventy-four million, forty thousand, thirty-seven".