100449742 has 16 divisors (see below), whose sum is σ = 153561600. Its totient is φ = 49266360.

The previous prime is 100449733. The next prime is 100449757. The reversal of 100449742 is 247944001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100867 + ... + 101857.

It is an arithmetic number, because the mean of its divisors is an integer number (9597600).

Almost surely, 2^100449742 is an apocalyptic number.

100449742 is a deficient number, since it is larger than the sum of its proper divisors (53111858).

100449742 is an equidigital number, since it uses as much as digits as its factorization.

100449742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 100449742 is about 10022.4618732126. The cubic root of 100449742 is about 464.8536819480.

The spelling of 100449742 in words is "one hundred million, four hundred forty-nine thousand, seven hundred forty-two".