786449440 has 96 divisors (see below), whose sum is σ = 2152725120. Its totient is φ = 265918464.

The previous prime is 786449431. The next prime is 786449441. The reversal of 786449440 is 44944687.

It is not an unprimeable number, because it can be changed into a prime (786449441) 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, 76951 + ... + 86569.

It is an arithmetic number, because the mean of its divisors is an integer number (22424220).

Almost surely, 2^786449440 is an apocalyptic number.

786449440 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 786449440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1076362560).

786449440 is an abundant number, since it is smaller than the sum of its proper divisors (1366275680).

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

786449440 is a wasteful number, since it uses less digits than its factorization.

786449440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9714 (or 9706 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 46.

The square root of 786449440 is about 28043.7058892009. The cubic root of 786449440 is about 923.0465480888.

The spelling of 786449440 in words is "seven hundred eighty-six million, four hundred forty-nine thousand, four hundred forty".