75340220 has 12 divisors (see below), whose sum is σ = 158214504. Its totient is φ = 30136080.

The previous prime is 75340219. The next prime is 75340241. The reversal of 75340220 is 2204357.

It is a super-2 number, since 2×75340220² = 11352297499296800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1883486 + ... + 1883525.

It is an arithmetic number, because the mean of its divisors is an integer number (13184542).

Almost surely, 2^75340220 is an apocalyptic number.

It is an amenable number.

75340220 is an abundant number, since it is smaller than the sum of its proper divisors (82874284).

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

75340220 is a wasteful number, since it uses less digits than its factorization.

75340220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3767020 (or 3767018 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 75340220 is about 8679.8744230547. The cubic root of 75340220 is about 422.3530434368.

Adding to 75340220 its reverse (2204357), we get a palindrome (77544577).

The spelling of 75340220 in words is "seventy-five million, three hundred forty thousand, two hundred twenty".