75422020 has 24 divisors (see below), whose sum is σ = 166723200. Its totient is φ = 28580832.

The previous prime is 75422003. The next prime is 75422023. The reversal of 75422020 is 2022457.

It is a super-2 number, since 2×75422020² = 11376962201760800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75421982 and 75422000.

It is not an unprimeable number, because it can be changed into a prime (75422023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98860 + ... + 99619.

It is an arithmetic number, because the mean of its divisors is an integer number (6946800).

Almost surely, 2^75422020 is an apocalyptic number.

It is an amenable number.

75422020 is an abundant number, since it is smaller than the sum of its proper divisors (91301180).

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

75422020 is a wasteful number, since it uses less digits than its factorization.

75422020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198507 (or 198505 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 75422020 is about 8684.5851944696. The cubic root of 75422020 is about 422.5058435521.

Adding to 75422020 its reverse (2022457), we get a palindrome (77444477).

The spelling of 75422020 in words is "seventy-five million, four hundred twenty-two thousand, twenty".