7400828 has 12 divisors (see below), whose sum is σ = 13267632. Its totient is φ = 3610080.

The previous prime is 7400821. The next prime is 7400837. The reversal of 7400828 is 8280047.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7400828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7400821) 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, 22400 + ... + 22727.

It is an arithmetic number, because the mean of its divisors is an integer number (1105636).

Almost surely, 2^7400828 is an apocalyptic number.

It is an amenable number.

7400828 is a deficient number, since it is larger than the sum of its proper divisors (5866804).

7400828 is a wasteful number, since it uses less digits than its factorization.

7400828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45172 (or 45170 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 7400828 is about 2720.4462869169. The cubic root of 7400828 is about 194.8767838727.

It can be divided in two parts, 7400 and 828, that added together give a palindrome (8228).

The spelling of 7400828 in words is "seven million, four hundred thousand, eight hundred twenty-eight".