107705840 has 40 divisors (see below), whose sum is σ = 273183408. Its totient is φ = 39165440.

The previous prime is 107705839. The next prime is 107705861. The reversal of 107705840 is 48507701.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 107705797 and 107705806.

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, 60317 + ... + 62076.

Almost surely, 2^107705840 is an apocalyptic number.

107705840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

107705840 is an abundant number, since it is smaller than the sum of its proper divisors (165477568).

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

107705840 is a wasteful number, since it uses less digits than its factorization.

107705840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122417 (or 122411 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 107705840 is about 10378.1424156734. The cubic root of 107705840 is about 475.7875614419.

The spelling of 107705840 in words is "one hundred seven million, seven hundred five thousand, eight hundred forty".