100305742 has 8 divisors (see below), whose sum is σ = 154525176. Its totient is φ = 48797352.

The previous prime is 100305707. The next prime is 100305773. The reversal of 100305742 is 247503001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×100305742² = 20122483756341128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677668 + ... + 677815.

It is an arithmetic number, because the mean of its divisors is an integer number (19315647).

Almost surely, 2^100305742 is an apocalyptic number.

100305742 is a deficient number, since it is larger than the sum of its proper divisors (54219434).

100305742 is a wasteful number, since it uses less digits than its factorization.

100305742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355522.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 100305742 is about 10015.2754330572. The cubic root of 100305742 is about 464.6314449659.

Adding to 100305742 its reverse (247503001), we get a palindrome (347808743).

The spelling of 100305742 in words is "one hundred million, three hundred five thousand, seven hundred forty-two".