101662420 has 12 divisors (see below), whose sum is σ = 213491124. Its totient is φ = 40664960.

The previous prime is 101662409. The next prime is 101662433. The reversal of 101662420 is 24266101.

It can be written as a sum of positive squares in 2 ways, for example, as 66781584 + 34880836 = 8172^2 + 5906^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101662391 and 101662400.

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, 2541541 + ... + 2541580.

It is an arithmetic number, because the mean of its divisors is an integer number (17790927).

Almost surely, 2^101662420 is an apocalyptic number.

101662420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101662420 is an abundant number, since it is smaller than the sum of its proper divisors (111828704).

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

101662420 is a wasteful number, since it uses less digits than its factorization.

101662420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5083130 (or 5083128 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 101662420 is about 10082.7783869328. The cubic root of 101662420 is about 466.7168506122.

It can be divided in two parts, 1016 and 62420, that added together give a palindrome (63436).

The spelling of 101662420 in words is "one hundred one million, six hundred sixty-two thousand, four hundred twenty".