1406155198 has 16 divisors (see below), whose sum is σ = 2411318880. Its totient is φ = 602446176.

The previous prime is 1406155189. The next prime is 1406155199. The reversal of 1406155198 is 8915516041.

It is a self number, because there is not a number n which added to its sum of digits gives 1406155198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406155199) by changing a digit.

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, 35248 + ... + 63676.

It is an arithmetic number, because the mean of its divisors is an integer number (150707430).

Almost surely, 2^1406155198 is an apocalyptic number.

1406155198 is a deficient number, since it is larger than the sum of its proper divisors (1005163682).

1406155198 is a wasteful number, since it uses less digits than its factorization.

1406155198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31971.

The product of its (nonzero) digits is 43200, while the sum is 40.

The square root of 1406155198 is about 37498.7359520291. The cubic root of 1406155198 is about 1120.3260100064.

The spelling of 1406155198 in words is "one billion, four hundred six million, one hundred fifty-five thousand, one hundred ninety-eight".