106438840 has 32 divisors (see below), whose sum is σ = 244010880. Its totient is φ = 41771392.

The previous prime is 106438831. The next prime is 106438867. The reversal of 106438840 is 48834601.

It is a super-2 number, since 2×106438840² = 22658453321091200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106438796 and 106438805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22984 + ... + 27223.

It is an arithmetic number, because the mean of its divisors is an integer number (7625340).

Almost surely, 2^106438840 is an apocalyptic number.

106438840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

106438840 is an abundant number, since it is smaller than the sum of its proper divisors (137572040).

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

106438840 is a wasteful number, since it uses less digits than its factorization.

106438840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50271 (or 50267 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 106438840 is about 10316.9200830480. The cubic root of 106438840 is about 473.9145519445.

The spelling of 106438840 in words is "one hundred six million, four hundred thirty-eight thousand, eight hundred forty".