93406640 has 40 divisors (see below), whose sum is σ = 218343168. Its totient is φ = 37160960.

The previous prime is 93406633. The next prime is 93406667. The reversal of 93406640 is 4660439.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 93406597 and 93406606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12224 + ... + 18336.

Almost surely, 2^93406640 is an apocalyptic number.

It is an amenable number.

93406640 is an abundant number, since it is smaller than the sum of its proper divisors (124936528).

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

93406640 is a wasteful number, since it uses less digits than its factorization.

93406640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6317 (or 6311 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 93406640 is about 9664.7110665555. The cubic root of 93406640 is about 453.7248683928.

The spelling of 93406640 in words is "ninety-three million, four hundred six thousand, six hundred forty".