75842990 has 8 divisors (see below), whose sum is σ = 136517400. Its totient is φ = 30337192.

The previous prime is 75842971. The next prime is 75842999. The reversal of 75842990 is 9924857.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75842999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3792140 + ... + 3792159.

It is an arithmetic number, because the mean of its divisors is an integer number (17064675).

Almost surely, 2^75842990 is an apocalyptic number.

75842990 is a deficient number, since it is larger than the sum of its proper divisors (60674410).

75842990 is a wasteful number, since it uses less digits than its factorization.

75842990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7584306.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 75842990 is about 8708.7880901995. The cubic root of 75842990 is about 423.2904614171.

The spelling of 75842990 in words is "seventy-five million, eight hundred forty-two thousand, nine hundred ninety".