1801801452 has 24 divisors (see below), whose sum is σ = 4586404032. Its totient is φ = 546000400.

The previous prime is 1801801429. The next prime is 1801801459. The reversal of 1801801452 is 2541081081.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1801801459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6824874 + ... + 6825137.

It is an arithmetic number, because the mean of its divisors is an integer number (191100168).

Almost surely, 2^1801801452 is an apocalyptic number.

1801801452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1801801452 is an abundant number, since it is smaller than the sum of its proper divisors (2784602580).

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

1801801452 is a wasteful number, since it uses less digits than its factorization.

1801801452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13650029 (or 13650027 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 30.

The square root of 1801801452 is about 42447.6318774087. The cubic root of 1801801452 is about 1216.8460710321.

The spelling of 1801801452 in words is "one billion, eight hundred one million, eight hundred one thousand, four hundred fifty-two".