7674143440 has 20 divisors (see below), whose sum is σ = 17842383684. Its totient is φ = 3069657344.

The previous prime is 7674143437. The next prime is 7674143447. The reversal of 7674143440 is 443414767.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2036536384 + 5637607056 = 45128^2 + 75084^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 7674143393 and 7674143402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7674143447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47963317 + ... + 47963476.

Almost surely, 2^7674143440 is an apocalyptic number.

It is an amenable number.

7674143440 is an abundant number, since it is smaller than the sum of its proper divisors (10168240244).

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

7674143440 is a wasteful number, since it uses less digits than its factorization.

7674143440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95926806 (or 95926800 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 40.

The square root of 7674143440 is about 87602.1885571359. The cubic root of 7674143440 is about 1972.4680208548.

The spelling of 7674143440 in words is "seven billion, six hundred seventy-four million, one hundred forty-three thousand, four hundred forty".