100342970 has 64 divisors (see below), whose sum is σ = 229533696. Its totient is φ = 30723840.

The previous prime is 100342943. The next prime is 100343003. The reversal of 100342970 is 79243001.

It is a Harshad number since it is a multiple of its sum of digits (26).

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 31 ways as a sum of consecutive naturals, for example, 26432 + ... + 29988.

It is an arithmetic number, because the mean of its divisors is an integer number (3586464).

Almost surely, 2^100342970 is an apocalyptic number.

100342970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100342970 is an abundant number, since it is smaller than the sum of its proper divisors (129190726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100342970 is a wasteful number, since it uses less digits than its factorization.

100342970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3615.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 100342970 is about 10017.1338216079. The cubic root of 100342970 is about 464.6889197744.

Adding to 100342970 its reverse (79243001), we get a palindrome (179585971).

The spelling of 100342970 in words is "one hundred million, three hundred forty-two thousand, nine hundred seventy".