842434101 has 24 divisors (see below), whose sum is σ = 1267418880. Its totient is φ = 559174752.

The previous prime is 842434091. The next prime is 842434111. The reversal of 842434101 is 101434248.

842434101 is a `hidden beast` number, since 8 + 4 + 243 + 410 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (842434091) and next prime (842434111).

It is not a de Polignac number, because 842434101 - 2¹⁴ = 842417717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842434111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49180 + ... + 64058.

It is an arithmetic number, because the mean of its divisors is an integer number (52809120).

Almost surely, 2^842434101 is an apocalyptic number.

842434101 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

842434101 is a deficient number, since it is larger than the sum of its proper divisors (424984779).

842434101 is a wasteful number, since it uses less digits than its factorization.

842434101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15127 (or 15115 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 842434101 is about 29024.7153474414. The cubic root of 842434101 is about 944.4492936463.

Adding to 842434101 its reverse (101434248), we get a palindrome (943868349).

The spelling of 842434101 in words is "eight hundred forty-two million, four hundred thirty-four thousand, one hundred one".