7540812 has 72 divisors (see below), whose sum is σ = 20442240. Its totient is φ = 2338560.

The previous prime is 7540807. The next prime is 7540823. The reversal of 7540812 is 2180457.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32248 + ... + 32480.

It is an arithmetic number, because the mean of its divisors is an integer number (283920).

Almost surely, 2^7540812 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 7540812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10221120).

7540812 is an abundant number, since it is smaller than the sum of its proper divisors (12901428).

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

7540812 is a wasteful number, since it uses less digits than its factorization.

7540812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 7540812 is about 2746.0538960479. The cubic root of 7540812 is about 196.0977923766.

The spelling of 7540812 in words is "seven million, five hundred forty thousand, eight hundred twelve".