74070438 has 16 divisors (see below), whose sum is σ = 159536496. Its totient is φ = 22790880.

The previous prime is 74070431. The next prime is 74070463. The reversal of 74070438 is 83407047.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 74070399 and 74070408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74070431) 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 7 ways as a sum of consecutive naturals, for example, 474733 + ... + 474888.

It is an arithmetic number, because the mean of its divisors is an integer number (9971031).

Almost surely, 2^74070438 is an apocalyptic number.

74070438 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

74070438 is an abundant number, since it is smaller than the sum of its proper divisors (85466058).

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

74070438 is a wasteful number, since it uses less digits than its factorization.

74070438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949639.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 74070438 is about 8606.4184188314. The cubic root of 74070438 is about 419.9668114365.

The spelling of 74070438 in words is "seventy-four million, seventy thousand, four hundred thirty-eight".