845279448 has 64 divisors (see below), whose sum is σ = 2395545600. Its totient is φ = 246395520.

The previous prime is 845279447. The next prime is 845279473. The reversal of 845279448 is 844972548.

It is a super-2 number, since 2×845279448² = 1428994690422369408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 845279448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845279447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65368 + ... + 77223.

It is an arithmetic number, because the mean of its divisors is an integer number (37430400).

Almost surely, 2^845279448 is an apocalyptic number.

It is an amenable number.

845279448 is an abundant number, since it is smaller than the sum of its proper divisors (1550266152).

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

845279448 is a wasteful number, since it uses less digits than its factorization.

845279448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142632 (or 142628 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 51.

The square root of 845279448 is about 29073.6899618882. The cubic root of 845279448 is about 945.5114009224.

The spelling of 845279448 in words is "eight hundred forty-five million, two hundred seventy-nine thousand, four hundred forty-eight".