1120406100 has 72 divisors (see below), whose sum is σ = 3536419488. Its totient is φ = 271612800.

The previous prime is 1120406083. The next prime is 1120406101. The reversal of 1120406100 is 16040211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1120406100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120406101) 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, 166459 + ... + 173058.

Almost surely, 2^1120406100 is an apocalyptic number.

1120406100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120406100 is an abundant number, since it is smaller than the sum of its proper divisors (2416013388).

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

1120406100 is a wasteful number, since it uses less digits than its factorization.

1120406100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339545 (or 339538 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1120406100 is about 33472.4677907082. The cubic root of 1120406100 is about 1038.6243213848.

Adding to 1120406100 its reverse (16040211), we get a palindrome (1136446311).

The spelling of 1120406100 in words is "one billion, one hundred twenty million, four hundred six thousand, one hundred".