103449690 has 32 divisors (see below), whose sum is σ = 275866560. Its totient is φ = 27586512.

The previous prime is 103449673. The next prime is 103449691. The reversal of 103449690 is 96944301.

It is a super-2 number, since 2×103449690² = 21403676722192200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (103449691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191304 + ... + 191843.

It is an arithmetic number, because the mean of its divisors is an integer number (8620830).

Almost surely, 2^103449690 is an apocalyptic number.

103449690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103449690 is an abundant number, since it is smaller than the sum of its proper divisors (172416870).

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

103449690 is a wasteful number, since it uses less digits than its factorization.

103449690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383163 (or 383157 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 103449690 is about 10171.0220725353. The cubic root of 103449690 is about 469.4360067523.

The spelling of 103449690 in words is "one hundred three million, four hundred forty-nine thousand, six hundred ninety".