864629450 has 24 divisors (see below), whose sum is σ = 1609197600. Its totient is φ = 345639600.

The previous prime is 864629419. The next prime is 864629459. The reversal of 864629450 is 54926468.

It is not an unprimeable number, because it can be changed into a prime (864629459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96251 + ... + 104849.

It is an arithmetic number, because the mean of its divisors is an integer number (67049900).

Almost surely, 2^864629450 is an apocalyptic number.

864629450 is a deficient number, since it is larger than the sum of its proper divisors (744568150).

864629450 is a wasteful number, since it uses less digits than its factorization.

864629450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10622 (or 10617 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 864629450 is about 29404.5821259204. The cubic root of 864629450 is about 952.6718689225.

The spelling of 864629450 in words is "eight hundred sixty-four million, six hundred twenty-nine thousand, four hundred fifty".