1116205450 has 24 divisors (see below), whose sum is σ = 2110183020. Its totient is φ = 439161600.

The previous prime is 1116205427. The next prime is 1116205459. The reversal of 1116205450 is 545026111.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 184063489 + 932141961 = 13567^2 + 30531^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (1116205459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179935 + ... + 186034.

Almost surely, 2^1116205450 is an apocalyptic number.

1116205450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1116205450 is a deficient number, since it is larger than the sum of its proper divisors (993977570).

1116205450 is a wasteful number, since it uses less digits than its factorization.

1116205450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366042 (or 366037 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1116205450 is about 33409.6610279123. The cubic root of 1116205450 is about 1037.3246851399.

The spelling of 1116205450 in words is "one billion, one hundred sixteen million, two hundred five thousand, four hundred fifty".