100043740 has 24 divisors (see below), whose sum is σ = 221150160. Its totient is φ = 37911168.

The previous prime is 100043737. The next prime is 100043761. The reversal of 100043740 is 47340001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 131257 + ... + 132016.

It is an arithmetic number, because the mean of its divisors is an integer number (9214590).

Almost surely, 2^100043740 is an apocalyptic number.

100043740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100043740 is an abundant number, since it is smaller than the sum of its proper divisors (121106420).

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

100043740 is a wasteful number, since it uses less digits than its factorization.

100043740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263301 (or 263299 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 100043740 is about 10002.1867609038. The cubic root of 100043740 is about 464.2265478619.

Adding to 100043740 its reverse (47340001), we get a palindrome (147383741).

The spelling of 100043740 in words is "one hundred million, forty-three thousand, seven hundred forty".