7400447740 has 24 divisors (see below), whose sum is σ = 17761074912. Its totient is φ = 2537296320.

The previous prime is 7400447713. The next prime is 7400447773. The reversal of 7400447740 is 477440047.

It is a super-2 number, since 2×7400447740² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7400447740.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26430031 + ... + 26430310.

It is an arithmetic number, because the mean of its divisors is an integer number (740044788).

Almost surely, 2^7400447740 is an apocalyptic number.

7400447740 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7400447740 is an abundant number, since it is smaller than the sum of its proper divisors (10360627172).

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

7400447740 is a wasteful number, since it uses less digits than its factorization.

7400447740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52860357 (or 52860355 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 37.

The square root of 7400447740 is about 86025.8550669507. The cubic root of 7400447740 is about 1948.7344617789.

Adding to 7400447740 its reverse (477440047), we get a palindrome (7877887787).

The spelling of 7400447740 in words is "seven billion, four hundred million, four hundred forty-seven thousand, seven hundred forty".