469086640 has 40 divisors (see below), whose sum is σ = 1189776528. Its totient is φ = 170576640.

The previous prime is 469086557. The next prime is 469086643. The reversal of 469086640 is 46680964.

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

It is not an unprimeable number, because it can be changed into a prime (469086643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265647 + ... + 267406.

Almost surely, 2^469086640 is an apocalyptic number.

469086640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

469086640 is an abundant number, since it is smaller than the sum of its proper divisors (720689888).

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

469086640 is a wasteful number, since it uses less digits than its factorization.

469086640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533077 (or 533071 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 469086640 is about 21658.4080670764. The cubic root of 469086640 is about 776.9940408788.

The spelling of 469086640 in words is "four hundred sixty-nine million, eighty-six thousand, six hundred forty".