13432740 has 48 divisors (see below), whose sum is σ = 37920960. Its totient is φ = 3552640.

The previous prime is 13432729. The next prime is 13432747. The reversal of 13432740 is 4723431.

It is a self number, because there is not a number n which added to its sum of digits gives 13432740.

It is not an unprimeable number, because it can be changed into a prime (13432747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7006 + ... + 8714.

It is an arithmetic number, because the mean of its divisors is an integer number (790020).

Almost surely, 2^13432740 is an apocalyptic number.

13432740 is a gapful number since it is divisible by the number (10) 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 13432740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18960480).

13432740 is an abundant number, since it is smaller than the sum of its proper divisors (24488220).

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

13432740 is a wasteful number, since it uses less digits than its factorization.

13432740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852 (or 1850 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 13432740 is about 3665.0702585353. The cubic root of 13432740 is about 237.7140600095.

The spelling of 13432740 in words is "thirteen million, four hundred thirty-two thousand, seven hundred forty".