101840456 has 32 divisors (see below), whose sum is σ = 207494400. Its totient is φ = 46681920.

The previous prime is 101840449. The next prime is 101840461. The reversal of 101840456 is 654048101.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6095 + ... + 15518.

It is an arithmetic number, because the mean of its divisors is an integer number (6484200).

Almost surely, 2^101840456 is an apocalyptic number.

It is an amenable number.

101840456 is an abundant number, since it is smaller than the sum of its proper divisors (105653944).

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

101840456 is a wasteful number, since it uses less digits than its factorization.

101840456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21669 (or 21665 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 101840456 is about 10091.6032423000. The cubic root of 101840456 is about 466.9891372096.

Adding to 101840456 its reverse (654048101), we get a palindrome (755888557).

The spelling of 101840456 in words is "one hundred one million, eight hundred forty thousand, four hundred fifty-six".