7243430040 has 768 divisors, whose sum is σ = 32752512000. Its totient is φ = 1340375040.

The previous prime is 7243430039. The next prime is 7243430041. The reversal of 7243430040 is 400343427.

It is an interprime number because it is at equal distance from previous prime (7243430039) and next prime (7243430041).

It is a junction number, because it is equal to n+sod(n) for n = 7243429986 and 7243430013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7243430041) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 8953156 + ... + 8953964.

It is an arithmetic number, because the mean of its divisors is an integer number (42646500).

Almost surely, 2^7243430040 is an apocalyptic number.

7243430040 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7243430040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16376256000).

7243430040 is an abundant number, since it is smaller than the sum of its proper divisors (25509081960).

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

7243430040 is a wasteful number, since it uses less digits than its factorization.

7243430040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 7243430040 is about 85108.3429517929. The cubic root of 7243430040 is about 1934.8535113349.

Adding to 7243430040 its reverse (400343427), we get a palindrome (7643773467).

The spelling of 7243430040 in words is "seven billion, two hundred forty-three million, four hundred thirty thousand, forty".