2991432 has 16 divisors (see below), whose sum is σ = 7478640. Its totient is φ = 997136.

The previous prime is 2991431. The next prime is 2991433. The reversal of 2991432 is 2341992.

2991432 is nontrivially palindromic in base 7.

It is an interprime number because it is at equal distance from previous prime (2991431) and next prime (2991433).

It is a self number, because there is not a number n which added to its sum of digits gives 2991432.

It is not an unprimeable number, because it can be changed into a prime (2991431) 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, 62298 + ... + 62345.

It is an arithmetic number, because the mean of its divisors is an integer number (467415).

2^2991432 is an apocalyptic number.

It is an amenable number.

2991432 is an abundant number, since it is smaller than the sum of its proper divisors (4487208).

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

2991432 is a wasteful number, since it uses less digits than its factorization.

2991432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124652 (or 124648 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 2991432 is about 1729.5756705042. The cubic root of 2991432 is about 144.0875239522.

The spelling of 2991432 in words is "two million, nine hundred ninety-one thousand, four hundred thirty-two".