101726420 has 12 divisors (see below), whose sum is σ = 213625524. Its totient is φ = 40690560.

The previous prime is 101726413. The next prime is 101726441. The reversal of 101726420 is 24627101.

It can be written as a sum of positive squares in 2 ways, for example, as 80066704 + 21659716 = 8948^2 + 4654^2 .

It is a super-3 number, since 3×101726420³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2543141 + ... + 2543180.

It is an arithmetic number, because the mean of its divisors is an integer number (17802127).

Almost surely, 2^101726420 is an apocalyptic number.

101726420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101726420 is an abundant number, since it is smaller than the sum of its proper divisors (111899104).

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

101726420 is a wasteful number, since it uses less digits than its factorization.

101726420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5086330 (or 5086328 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 101726420 is about 10085.9516159855. The cubic root of 101726420 is about 466.8147681862.

The spelling of 101726420 in words is "one hundred one million, seven hundred twenty-six thousand, four hundred twenty".