100342390 has 16 divisors (see below), whose sum is σ = 181307808. Its totient is φ = 39983296.

The previous prime is 100342387. The next prime is 100342441. The reversal of 100342390 is 93243001.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16447 + ... + 21706.

It is an arithmetic number, because the mean of its divisors is an integer number (11331738).

Almost surely, 2^100342390 is an apocalyptic number.

100342390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100342390 is a deficient number, since it is larger than the sum of its proper divisors (80965418).

100342390 is a wasteful number, since it uses less digits than its factorization.

100342390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38423.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 100342390 is about 10017.1048711691. The cubic root of 100342390 is about 464.6880244448.

Adding to 100342390 its reverse (93243001), we get a palindrome (193585391).

The spelling of 100342390 in words is "one hundred million, three hundred forty-two thousand, three hundred ninety".