75042870 has 32 divisors (see below), whose sum is σ = 205832448. Its totient is φ = 17152608.

The previous prime is 75042857. The next prime is 75042883. The reversal of 75042870 is 7824057.

It is an interprime number because it is at equal distance from previous prime (75042857) and next prime (75042883).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178464 + ... + 178883.

It is an arithmetic number, because the mean of its divisors is an integer number (6432264).

Almost surely, 2^75042870 is an apocalyptic number.

75042870 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

75042870 is an abundant number, since it is smaller than the sum of its proper divisors (130789578).

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

75042870 is a wasteful number, since it uses less digits than its factorization.

75042870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357364.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 75042870 is about 8662.7287848576. The cubic root of 75042870 is about 421.7966683648.

The spelling of 75042870 in words is "seventy-five million, forty-two thousand, eight hundred seventy".