7074640 has 40 divisors (see below), whose sum is σ = 16570368. Its totient is φ = 2808960.

The previous prime is 7074629. The next prime is 7074643. The reversal of 7074640 is 464707.

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

It is a super-2 number, since 2×7074640² = 100101062259200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7074599 and 7074608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7074643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15049 + ... + 15511.

Almost surely, 2^7074640 is an apocalyptic number.

It is an amenable number.

7074640 is an abundant number, since it is smaller than the sum of its proper divisors (9495728).

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

7074640 is a wasteful number, since it uses less digits than its factorization.

7074640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667 (or 661 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 7074640 is about 2659.8195427510. The cubic root of 7074640 is about 191.9706262934.

The spelling of 7074640 in words is "seven million, seventy-four thousand, six hundred forty".