7452940 has 48 divisors (see below), whose sum is σ = 17982720. Its totient is φ = 2566080.

The previous prime is 7452923. The next prime is 7452961. The reversal of 7452940 is 492547.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3289 + ... + 5071.

It is an arithmetic number, because the mean of its divisors is an integer number (374640).

Almost surely, 2^7452940 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 7452940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8991360).

7452940 is an abundant number, since it is smaller than the sum of its proper divisors (10529780).

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

7452940 is a wasteful number, since it uses less digits than its factorization.

7452940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822 (or 1820 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 7452940 is about 2730.0073259975. The cubic root of 7452940 is about 195.3331146028. Note that the first 3 decimals are identical.

The spelling of 7452940 in words is "seven million, four hundred fifty-two thousand, nine hundred forty".