472236557 has 8 divisors (see below), whose sum is σ = 538478136. Its totient is φ = 410268672.

The previous prime is 472236553. The next prime is 472236607. The reversal of 472236557 is 755632274.

It can be written as a sum of positive squares in 4 ways, for example, as 196 + 472236361 = 14^2 + 21731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 472236557 - 2² = 472236553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472236553) 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, 1068188 + ... + 1068629.

It is an arithmetic number, because the mean of its divisors is an integer number (67309767).

Almost surely, 2^472236557 is an apocalyptic number.

It is an amenable number.

472236557 is a deficient number, since it is larger than the sum of its proper divisors (66241579).

472236557 is a wasteful number, since it uses less digits than its factorization.

472236557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136847.

The product of its digits is 352800, while the sum is 41.

The square root of 472236557 is about 21731.0045096862. The cubic root of 472236557 is about 778.7293342690.

The spelling of 472236557 in words is "four hundred seventy-two million, two hundred thirty-six thousand, five hundred fifty-seven".