7040389285 has 4 divisors (see below), whose sum is σ = 8448467148. Its totient is φ = 5632311424.

The previous prime is 7040389277. The next prime is 7040389303. The reversal of 7040389285 is 5829830407.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3414181761 + 3626207524 = 58431^2 + 60218^2 .

It is a cyclic number.

It is not a de Polignac number, because 7040389285 - 2³ = 7040389277 is a prime.

It is a super-2 number, since 2×7040389285² = 99134162568685622450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704038924 + ... + 704038933.

It is an arithmetic number, because the mean of its divisors is an integer number (2112116787).

Almost surely, 2^7040389285 is an apocalyptic number.

It is an amenable number.

7040389285 is a deficient number, since it is larger than the sum of its proper divisors (1408077863).

7040389285 is a wasteful number, since it uses less digits than its factorization.

7040389285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408077862.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 7040389285 is about 83907.0276258193. The cubic root of 7040389285 is about 1916.6032684596.

The spelling of 7040389285 in words is "seven billion, forty million, three hundred eighty-nine thousand, two hundred eighty-five".