75381404 has 18 divisors (see below), whose sum is σ = 153455400. Its totient is φ = 32306232.

The previous prime is 75381401. The next prime is 75381407. The reversal of 75381404 is 40418357.

It is an interprime number because it is at equal distance from previous prime (75381401) and next prime (75381407).

It is a super-2 number, since 2×75381404² = 11364712138022432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75381401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 192104 + ... + 192495.

It is an arithmetic number, because the mean of its divisors is an integer number (8525300).

Almost surely, 2^75381404 is an apocalyptic number.

It is an amenable number.

75381404 is an abundant number, since it is smaller than the sum of its proper divisors (78073996).

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

75381404 is a wasteful number, since it uses less digits than its factorization.

75381404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384617 (or 384608 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 75381404 is about 8682.2464834857. The cubic root of 75381404 is about 422.4299878154.

The spelling of 75381404 in words is "seventy-five million, three hundred eighty-one thousand, four hundred four".