402071707 has 8 divisors (see below), whose sum is σ = 413702352. Its totient is φ = 390528000.

The previous prime is 402071647. The next prime is 402071723. The reversal of 402071707 is 707170204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402071707 - 2¹⁵ = 402038939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402071207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12294 + ... + 30907.

It is an arithmetic number, because the mean of its divisors is an integer number (51712794).

Almost surely, 2^402071707 is an apocalyptic number.

402071707 is a deficient number, since it is larger than the sum of its proper divisors (11630645).

402071707 is a wasteful number, since it uses less digits than its factorization.

402071707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43469.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 402071707 is about 20051.7257860764. The cubic root of 402071707 is about 738.0761489226.

It can be divided in two parts, 40207 and 1707, that added together give a palindrome (41914).

The spelling of 402071707 in words is "four hundred two million, seventy-one thousand, seven hundred seven".