1797432252 has 144 divisors (see below), whose sum is σ = 5330384640. Its totient is φ = 461387520.

The previous prime is 1797432239. The next prime is 1797432269. The reversal of 1797432252 is 2522347971.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 903603 + ... + 905589.

It is an arithmetic number, because the mean of its divisors is an integer number (37016560).

Almost surely, 2^1797432252 is an apocalyptic number.

1797432252 is a gapful number since it is divisible by the number (12) 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 1797432252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2665192320).

1797432252 is an abundant number, since it is smaller than the sum of its proper divisors (3532952388).

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

1797432252 is a wasteful number, since it uses less digits than its factorization.

1797432252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2112 (or 2099 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The square root of 1797432252 is about 42396.1348709997. The cubic root of 1797432252 is about 1215.8616956261.

The spelling of 1797432252 in words is "one billion, seven hundred ninety-seven million, four hundred thirty-two thousand, two hundred fifty-two".