100342478 has 8 divisors (see below), whose sum is σ = 154014168. Its totient is φ = 49004424.

The previous prime is 100342471. The next prime is 100342481. The reversal of 100342478 is 874243001.

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

It is a super-2 number, since 2×100342478² = 20137225782360968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100342478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100342471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583301 + ... + 583472.

It is an arithmetic number, because the mean of its divisors is an integer number (19251771).

Almost surely, 2^100342478 is an apocalyptic number.

100342478 is a deficient number, since it is larger than the sum of its proper divisors (53671690).

100342478 is a wasteful number, since it uses less digits than its factorization.

100342478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166818.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 100342478 is about 10017.1092636549. The cubic root of 100342478 is about 464.6881602882.

Adding to 100342478 its reverse (874243001), we get a palindrome (974585479).

The spelling of 100342478 in words is "one hundred million, three hundred forty-two thousand, four hundred seventy-eight".