1090454100 has 72 divisors (see below), whose sum is σ = 3171234528. Its totient is φ = 289296000.

The previous prime is 1090454089. The next prime is 1090454111. The reversal of 1090454100 is 14540901.

It is an interprime number because it is at equal distance from previous prime (1090454089) and next prime (1090454111).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49875 + ... + 68325.

It is an arithmetic number, because the mean of its divisors is an integer number (44044924).

Almost surely, 2^1090454100 is an apocalyptic number.

1090454100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1090454100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1585617264).

1090454100 is an abundant number, since it is smaller than the sum of its proper divisors (2080780428).

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

1090454100 is a wasteful number, since it uses less digits than its factorization.

1090454100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18665 (or 18658 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1090454100 is about 33022.0244685271. The cubic root of 1090454100 is about 1029.2853622018.

The spelling of 1090454100 in words is "one billion, ninety million, four hundred fifty-four thousand, one hundred".