1107278198 has 12 divisors (see below), whose sum is σ = 1798508628. Its totient is φ = 511051320.

The previous prime is 1107278197. The next prime is 1107278231. The reversal of 1107278198 is 8918727011.

It is a super-2 number, since 2×1107278198² = 2452130015532254408, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1107278197) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1637648 + ... + 1638323.

It is an arithmetic number, because the mean of its divisors is an integer number (149875719).

Almost surely, 2^1107278198 is an apocalyptic number.

1107278198 is a deficient number, since it is larger than the sum of its proper divisors (691230430).

1107278198 is a wasteful number, since it uses less digits than its factorization.

1107278198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275999 (or 3275986 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 44.

The square root of 1107278198 is about 33275.7899680834. The cubic root of 1107278198 is about 1034.5518213282.

The spelling of 1107278198 in words is "one billion, one hundred seven million, two hundred seventy-eight thousand, one hundred ninety-eight".