75410020 has 36 divisors (see below), whose sum is σ = 184218300. Its totient is φ = 25854528.

The previous prime is 75410017. The next prime is 75410021. The reversal of 75410020 is 2001457.

It can be written as a sum of positive squares in 2 ways, for example, as 39337984 + 36072036 = 6272^2 + 6006^2 .

It is a super-2 number, since 2×75410020² = 11373342232800800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75410020.

It is not an unprimeable number, because it can be changed into a prime (75410021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37495 + ... + 39454.

It is an arithmetic number, because the mean of its divisors is an integer number (5117175).

Almost surely, 2^75410020 is an apocalyptic number.

75410020 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

75410020 is an abundant number, since it is smaller than the sum of its proper divisors (108808280).

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

75410020 is a wasteful number, since it uses less digits than its factorization.

75410020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76972 (or 76963 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 75410020 is about 8683.8942877030. The cubic root of 75410020 is about 422.4834348045.

Adding to 75410020 its reverse (2001457), we get a palindrome (77411477).

The spelling of 75410020 in words is "seventy-five million, four hundred ten thousand, twenty".