406198842 has 16 divisors (see below), whose sum is σ = 928454592. Its totient is φ = 116056800.

The previous prime is 406198811. The next prime is 406198847. The reversal of 406198842 is 248891604.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 9671401 = 406198842 / (4 + 0 + 6 + 1 + 9 + 8 + 8 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 406198794 and 406198803.

It is not an unprimeable number, because it can be changed into a prime (406198847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4835659 + ... + 4835742.

It is an arithmetic number, because the mean of its divisors is an integer number (58028412).

Almost surely, 2^406198842 is an apocalyptic number.

406198842 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

406198842 is an abundant number, since it is smaller than the sum of its proper divisors (522255750).

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

406198842 is a wasteful number, since it uses less digits than its factorization.

406198842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9671413.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 406198842 is about 20154.3752570006. The cubic root of 406198842 is about 740.5929275150.

The spelling of 406198842 in words is "four hundred six million, one hundred ninety-eight thousand, eight hundred forty-two".