109938428 has 6 divisors (see below), whose sum is σ = 192392256. Its totient is φ = 54969212.

The previous prime is 109938421. The next prime is 109938457. The reversal of 109938428 is 824839901.

It is a happy number.

It is a super-2 number, since 2×109938428² = 24172915902222368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109938421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13742300 + ... + 13742307.

It is an arithmetic number, because the mean of its divisors is an integer number (32065376).

Almost surely, 2^109938428 is an apocalyptic number.

It is an amenable number.

109938428 is a deficient number, since it is larger than the sum of its proper divisors (82453828).

109938428 is a wasteful number, since it uses less digits than its factorization.

109938428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27484611 (or 27484609 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 109938428 is about 10485.1527408999. The cubic root of 109938428 is about 479.0525698380.

The spelling of 109938428 in words is "one hundred nine million, nine hundred thirty-eight thousand, four hundred twenty-eight".