75439020 has 24 divisors (see below), whose sum is σ = 211229424. Its totient is φ = 20117056.

The previous prime is 75438953. The next prime is 75439033. The reversal of 75439020 is 2093457.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628599 + ... + 628718.

It is an arithmetic number, because the mean of its divisors is an integer number (8801226).

Almost surely, 2^75439020 is an apocalyptic number.

It is an amenable number.

75439020 is an abundant number, since it is smaller than the sum of its proper divisors (135790404).

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

75439020 is a wasteful number, since it uses less digits than its factorization.

75439020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257329 (or 1257327 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 75439020 is about 8685.5638849760. The cubic root of 75439020 is about 422.5375852095.

The spelling of 75439020 in words is "seventy-five million, four hundred thirty-nine thousand, twenty".