1491432 has 16 divisors (see below), whose sum is σ = 3728640. Its totient is φ = 497136.

The previous prime is 1491421. The next prime is 1491437. The reversal of 1491432 is 2341941.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 62143 = 1491432 / (1 + 4 + 9 + 1 + 4 + 3 + 2).

It is not an unprimeable number, because it can be changed into a prime (1491437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31048 + ... + 31095.

It is an arithmetic number, because the mean of its divisors is an integer number (233040).

2^1491432 is an apocalyptic number.

1491432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1491432 is an abundant number, since it is smaller than the sum of its proper divisors (2237208).

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

1491432 is a wasteful number, since it uses less digits than its factorization.

1491432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62152 (or 62148 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 1491432 is about 1221.2419907619. The cubic root of 1491432 is about 114.2530543580.

The spelling of 1491432 in words is "one million, four hundred ninety-one thousand, four hundred thirty-two".