7405000 has 40 divisors (see below), whose sum is σ = 17361630. Its totient is φ = 2960000.

The previous prime is 7404997. The next prime is 7405007. The reversal of 7405000 is 5047.

7405000 is nontrivially palindromic in base 6.

It can be written as a sum of positive squares in 5 ways, for example, as 39204 + 7365796 = 198^2 + 2714^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (7405007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4260 + ... + 5740.

Almost surely, 2^7405000 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 7405000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8680815).

7405000 is an abundant number, since it is smaller than the sum of its proper divisors (9956630).

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

7405000 is a wasteful number, since it uses less digits than its factorization.

7405000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507 (or 1488 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 16.

The square root of 7405000 is about 2721.2129648376. The cubic root of 7405000 is about 194.9133956868.

The spelling of 7405000 in words is "seven million, four hundred five thousand".