86469440 has 28 divisors (see below), whose sum is σ = 205906116. Its totient is φ = 34587648.

The previous prime is 86469419. The next prime is 86469457. The reversal of 86469440 is 4496468.

It can be written as a sum of positive squares in 2 ways, for example, as 29073664 + 57395776 = 5392^2 + 7576^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134789 + ... + 135428.

Almost surely, 2^86469440 is an apocalyptic number.

86469440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

86469440 is an abundant number, since it is smaller than the sum of its proper divisors (119436676).

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

86469440 is a wasteful number, since it uses less digits than its factorization.

86469440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270234 (or 270224 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 86469440 is about 9298.8945579569. The cubic root of 86469440 is about 442.2021829126.

The spelling of 86469440 in words is "eighty-six million, four hundred sixty-nine thousand, four hundred forty".