7405230 has 64 divisors (see below), whose sum is σ = 20528640. Its totient is φ = 1674624.

The previous prime is 7405199. The next prime is 7405247. The reversal of 7405230 is 325047.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7405197 and 7405206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37492 + ... + 37688.

It is an arithmetic number, because the mean of its divisors is an integer number (320760).

Almost surely, 2^7405230 is an apocalyptic number.

7405230 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 7405230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10264320).

7405230 is an abundant number, since it is smaller than the sum of its proper divisors (13123410).

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

7405230 is a wasteful number, since it uses less digits than its factorization.

7405230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 7405230 is about 2721.2552250754. The cubic root of 7405230 is about 194.9154136754.

The spelling of 7405230 in words is "seven million, four hundred five thousand, two hundred thirty".