109478028 has 48 divisors (see below), whose sum is σ = 295069824. Its totient is φ = 31223040.

The previous prime is 109478023. The next prime is 109478029. The reversal of 109478028 is 820874901.

It is a super-2 number, since 2×109478028² = 23970877229537568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (109478023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22150 + ... + 26637.

It is an arithmetic number, because the mean of its divisors is an integer number (6147288).

Almost surely, 2^109478028 is an apocalyptic number.

It is an amenable number.

109478028 is an abundant number, since it is smaller than the sum of its proper divisors (185591796).

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

109478028 is a wasteful number, since it uses less digits than its factorization.

109478028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48822 (or 48820 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 109478028 is about 10463.1748527873. The cubic root of 109478028 is about 478.3829089300.

The spelling of 109478028 in words is "one hundred nine million, four hundred seventy-eight thousand, twenty-eight".