7230407440 has 40 divisors (see below), whose sum is σ = 17695474560. Its totient is φ = 2739943296.

The previous prime is 7230407413. The next prime is 7230407477. The reversal of 7230407440 is 447040327.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2376904 + ... + 2379943.

It is an arithmetic number, because the mean of its divisors is an integer number (442386864).

Almost surely, 2^7230407440 is an apocalyptic number.

It is an amenable number.

7230407440 is an abundant number, since it is smaller than the sum of its proper divisors (10465067120).

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

7230407440 is a wasteful number, since it uses less digits than its factorization.

7230407440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4756879 (or 4756873 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 7230407440 is about 85031.8025211744. The cubic root of 7230407440 is about 1933.6932903561.

Adding to 7230407440 its reverse (447040327), we get a palindrome (7677447767).

The spelling of 7230407440 in words is "seven billion, two hundred thirty million, four hundred seven thousand, four hundred forty".