100646434 has 16 divisors (see below), whose sum is σ = 172814400. Its totient is φ = 43064784.

The previous prime is 100646407. The next prime is 100646437. The reversal of 100646434 is 434646001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (100646437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3772 + ... + 14680.

It is an arithmetic number, because the mean of its divisors is an integer number (10800900).

Almost surely, 2^100646434 is an apocalyptic number.

100646434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

100646434 is a deficient number, since it is larger than the sum of its proper divisors (72167966).

100646434 is a wasteful number, since it uses less digits than its factorization.

100646434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11577.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 100646434 is about 10032.2696335376. The cubic root of 100646434 is about 465.1568962211.

The spelling of 100646434 in words is "one hundred million, six hundred forty-six thousand, four hundred thirty-four".