101680438 has 16 divisors (see below), whose sum is σ = 166086000. Its totient is φ = 46503072.

The previous prime is 101680433. The next prime is 101680471. The reversal of 101680438 is 834086101.

It is a super-3 number, since 3×101680438³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101680433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45033 + ... + 47236.

It is an arithmetic number, because the mean of its divisors is an integer number (10380375).

Almost surely, 2^101680438 is an apocalyptic number.

101680438 is a deficient number, since it is larger than the sum of its proper divisors (64405562).

101680438 is a wasteful number, since it uses less digits than its factorization.

101680438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92319.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 101680438 is about 10083.6718510670. The cubic root of 101680438 is about 466.7444216244.

The spelling of 101680438 in words is "one hundred one million, six hundred eighty thousand, four hundred thirty-eight".