108777940 has 24 divisors (see below), whose sum is σ = 228632040. Its totient is φ = 43473408.

The previous prime is 108777931. The next prime is 108777941. The reversal of 108777940 is 49777801.

It can be written as a sum of positive squares in 4 ways, for example, as 49364676 + 59413264 = 7026^2 + 7708^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108777941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38496 + ... + 41224.

It is an arithmetic number, because the mean of its divisors is an integer number (9526335).

Almost surely, 2^108777940 is an apocalyptic number.

108777940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108777940 is an abundant number, since it is smaller than the sum of its proper divisors (119854100).

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

108777940 is a wasteful number, since it uses less digits than its factorization.

108777940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4731 (or 4729 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 43.

The square root of 108777940 is about 10429.6663417388. Note that the first 3 decimals coincide. The cubic root of 108777940 is about 477.3610095910.

The spelling of 108777940 in words is "one hundred eight million, seven hundred seventy-seven thousand, nine hundred forty".