109378040442 has 32 divisors (see below), whose sum is σ = 240072021504. Its totient is φ = 32946385200.

The previous prime is 109378040413. The next prime is 109378040461. The reversal of 109378040442 is 244040873901.

It is a junction number, because it is equal to n+sod(n) for n = 109378040394 and 109378040403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4950784 + ... + 4972827.

It is an arithmetic number, because the mean of its divisors is an integer number (7502250672).

Almost surely, 2^109378040442 is an apocalyptic number.

109378040442 is an abundant number, since it is smaller than the sum of its proper divisors (130693981062).

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

109378040442 is a wasteful number, since it uses less digits than its factorization.

109378040442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9923794.

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 109378040442 in words is "one hundred nine billion, three hundred seventy-eight million, forty thousand, four hundred forty-two".