1100451402 has 48 divisors (see below), whose sum is σ = 2443103208. Its totient is φ = 357851520.

The previous prime is 1100451379. The next prime is 1100451403. The reversal of 1100451402 is 2041540011.

It can be written as a sum of positive squares in 4 ways, for example, as 900540081 + 199911321 = 30009^2 + 14139^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1100451403) 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, 169488 + ... + 175860.

Almost surely, 2^1100451402 is an apocalyptic number.

1100451402 is an abundant number, since it is smaller than the sum of its proper divisors (1342651806).

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

1100451402 is a wasteful number, since it uses less digits than its factorization.

1100451402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6615 (or 6612 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1100451402 is about 33173.0523467467. The cubic root of 1100451402 is about 1032.4213001786.

Adding to 1100451402 its reverse (2041540011), we get a palindrome (3141991413).

The spelling of 1100451402 in words is "one billion, one hundred million, four hundred fifty-one thousand, four hundred two".