1801354456 has 16 divisors (see below), whose sum is σ = 3684588840. Its totient is φ = 818797440.

The previous prime is 1801354453. The next prime is 1801354463. The reversal of 1801354456 is 6544531081.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1801354453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10234881 + ... + 10235056.

Almost surely, 2^1801354456 is an apocalyptic number.

It is an amenable number.

1801354456 is an abundant number, since it is smaller than the sum of its proper divisors (1883234384).

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

1801354456 is a wasteful number, since it uses less digits than its factorization.

1801354456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20469954 (or 20469950 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 1801354456 is about 42442.3662865303. The cubic root of 1801354456 is about 1216.7454365048.

The spelling of 1801354456 in words is "one billion, eight hundred one million, three hundred fifty-four thousand, four hundred fifty-six".