100042466 has 4 divisors (see below), whose sum is σ = 150063702. Its totient is φ = 50021232.

The previous prime is 100042451. The next prime is 100042493. The reversal of 100042466 is 664240001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 664240001 = 2879 ⋅230719.

It can be written as a sum of positive squares in only one way, i.e., 85026841 + 15015625 = 9221^2 + 3875^2 .

It is a super-2 number, since 2×100042466² = 20016990006722312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25010615 + ... + 25010618.

Almost surely, 2^100042466 is an apocalyptic number.

100042466 is a deficient number, since it is larger than the sum of its proper divisors (50021236).

100042466 is an equidigital number, since it uses as much as digits as its factorization.

100042466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50021235.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 100042466 is about 10002.1230746277. The cubic root of 100042466 is about 464.2245773001.

Adding to 100042466 its reverse (664240001), we get a palindrome (764282467).

The spelling of 100042466 in words is "one hundred million, forty-two thousand, four hundred sixty-six".