7440132 has 48 divisors (see below), whose sum is σ = 20708352. Its totient is φ = 2032800.

The previous prime is 7440127. The next prime is 7440151. The reversal of 7440132 is 2310447.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 7440099 and 7440108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7 + ... + 3857.

It is an arithmetic number, because the mean of its divisors is an integer number (431424).

Almost surely, 2^7440132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7440132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10354176).

7440132 is an abundant number, since it is smaller than the sum of its proper divisors (13268220).

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

7440132 is a wasteful number, since it uses less digits than its factorization.

7440132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3888 (or 3886 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 7440132 is about 2727.6605360638. The cubic root of 7440132 is about 195.2211560538.

Adding to 7440132 its sum of digits (21), we get a triangular number (7440153 = T₃₈₅₇).

Adding to 7440132 its reverse (2310447), we get a palindrome (9750579).

It can be divided in two parts, 74401 and 32, that multiplied together give a palindrome (2380832).

The spelling of 7440132 in words is "seven million, four hundred forty thousand, one hundred thirty-two".