100805470 has 32 divisors (see below), whose sum is σ = 189423360. Its totient is φ = 38588160.

The previous prime is 100805443. The next prime is 100805473. The reversal of 100805470 is 74508001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100805473) 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, 19411 + ... + 24049.

It is an arithmetic number, because the mean of its divisors is an integer number (5919480).

Almost surely, 2^100805470 is an apocalyptic number.

100805470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100805470 is a deficient number, since it is larger than the sum of its proper divisors (88617890).

100805470 is a wasteful number, since it uses less digits than its factorization.

100805470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4740.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 100805470 is about 10040.1927272339. The cubic root of 100805470 is about 465.4017724634.

The spelling of 100805470 in words is "one hundred million, eight hundred five thousand, four hundred seventy".