1901232 has 70 divisors (see below), whose sum is σ = 5556812. Its totient is φ = 629856.

The previous prime is 1901231. The next prime is 1901267. The reversal of 1901232 is 2321091.

It is a happy number.

It is a super-2 number, since 2×1901232² = 7229366235648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1901231) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 11583 + ... + 11745.

2^1901232 is an apocalyptic number.

1901232 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 1901232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2778406).

1901232 is an abundant number, since it is smaller than the sum of its proper divisors (3655580).

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

1901232 is an equidigital number, since it uses as much as digits as its factorization.

1901232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1901232 is about 1378.8516961588. The cubic root of 1901232 is about 123.8829975086.

It can be divided in two parts, 19012 and 32, that added together give a square (19044 = 138²).

The spelling of 1901232 in words is "one million, nine hundred one thousand, two hundred thirty-two".