457221633 has 8 divisors (see below), whose sum is σ = 665049696. Its totient is φ = 277104000.

The previous prime is 457221631. The next prime is 457221637. The reversal of 457221633 is 336122754.

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

It is not a de Polignac number, because 457221633 - 2¹ = 457221631 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 13855201 = 457221633 / (4 + 5 + 7 + 2 + 2 + 1 + 6 + 3 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 457221594 and 457221603.

It is not an unprimeable number, because it can be changed into a prime (457221631) 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, 6927568 + ... + 6927633.

It is an arithmetic number, because the mean of its divisors is an integer number (83131212).

Almost surely, 2^457221633 is an apocalyptic number.

It is an amenable number.

457221633 is a deficient number, since it is larger than the sum of its proper divisors (207828063).

457221633 is a wasteful number, since it uses less digits than its factorization.

457221633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13855215.

The product of its digits is 30240, while the sum is 33.

The square root of 457221633 is about 21382.7414753113. The cubic root of 457221633 is about 770.3869607274.

The spelling of 457221633 in words is "four hundred fifty-seven million, two hundred twenty-one thousand, six hundred thirty-three".