75715290 has 192 divisors, whose sum is σ = 241315200. Its totient is φ = 16837632.

The previous prime is 75715273. The next prime is 75715309. The reversal of 75715290 is 9251757.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 780522 + ... + 780618.

It is an arithmetic number, because the mean of its divisors is an integer number (1256850).

Almost surely, 2^75715290 is an apocalyptic number.

75715290 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 75715290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120657600).

75715290 is an abundant number, since it is smaller than the sum of its proper divisors (165599910).

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

75715290 is a wasteful number, since it uses less digits than its factorization.

75715290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 36.

The square root of 75715290 is about 8701.4533268874. The cubic root of 75715290 is about 423.0527573652.

The spelling of 75715290 in words is "seventy-five million, seven hundred fifteen thousand, two hundred ninety".