475121720 has 16 divisors (see below), whose sum is σ = 1069023960. Its totient is φ = 190048672.

The previous prime is 475121711. The next prime is 475121747. The reversal of 475121720 is 27121574.

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, 5938982 + ... + 5939061.

Almost surely, 2^475121720 is an apocalyptic number.

475121720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

475121720 is an abundant number, since it is smaller than the sum of its proper divisors (593902240).

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

475121720 is a wasteful number, since it uses less digits than its factorization.

475121720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11878054 (or 11878050 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 475121720 is about 21797.2869871459. The cubic root of 475121720 is about 780.3120163055.

The spelling of 475121720 in words is "four hundred seventy-five million, one hundred twenty-one thousand, seven hundred twenty".