75426388 has 24 divisors (see below), whose sum is σ = 135616320. Its totient is φ = 36684480.

The previous prime is 75426383. The next prime is 75426397. The reversal of 75426388 is 88362457.

It is a super-3 number, since 3×75426388³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75426383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101145 + ... + 101887.

It is an arithmetic number, because the mean of its divisors is an integer number (5650680).

Almost surely, 2^75426388 is an apocalyptic number.

It is an amenable number.

75426388 is a deficient number, since it is larger than the sum of its proper divisors (60189932).

75426388 is a wasteful number, since it uses less digits than its factorization.

75426388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407 (or 1405 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 75426388 is about 8684.8366708879. The cubic root of 75426388 is about 422.5139997462.

The spelling of 75426388 in words is "seventy-five million, four hundred twenty-six thousand, three hundred eighty-eight".