173949740 has 24 divisors (see below), whose sum is σ = 369699120. Its totient is φ = 68740928.

The previous prime is 173949739. The next prime is 173949761. The reversal of 173949740 is 47949371.

173949740 = T₃₆₆ + T₃₆₇ + ... + T₁₀₂₉.

It is a happy number.

173949740 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

173949740 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 173949691 and 173949700.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 50735 + ... + 54054.

It is an arithmetic number, because the mean of its divisors is an integer number (15404130).

Almost surely, 2^173949740 is an apocalyptic number.

173949740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

173949740 is an abundant number, since it is smaller than the sum of its proper divisors (195749380).

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

173949740 is a wasteful number, since it uses less digits than its factorization.

173949740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104881 (or 104879 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 173949740 is about 13189.0007202972. Note that the first 3 decimals coincide. The cubic root of 173949740 is about 558.2232591104.

The spelling of 173949740 in words is "one hundred seventy-three million, nine hundred forty-nine thousand, seven hundred forty".