340028028 has 36 divisors (see below), whose sum is σ = 904754760. Its totient is φ = 107377056.

The previous prime is 340028023. The next prime is 340028053. The reversal of 340028028 is 820820043.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 340027992 and 340028010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340028023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 247875 + ... + 249242.

Almost surely, 2^340028028 is an apocalyptic number.

340028028 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

340028028 is an abundant number, since it is smaller than the sum of its proper divisors (564726732).

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

340028028 is a wasteful number, since it uses less digits than its factorization.

340028028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497146 (or 497141 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 340028028 is about 18439.8489147824. The cubic root of 340028028 is about 697.9723828231.

The spelling of 340028028 in words is "three hundred forty million, twenty-eight thousand, twenty-eight".