402068207 has 4 divisors (see below), whose sum is σ = 425719296. Its totient is φ = 378417120.

The previous prime is 402068197. The next prime is 402068231. The reversal of 402068207 is 702860204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402068207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402068207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402068237) 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, 11825519 + ... + 11825552.

It is an arithmetic number, because the mean of its divisors is an integer number (106429824).

Almost surely, 2^402068207 is an apocalyptic number.

402068207 is a deficient number, since it is larger than the sum of its proper divisors (23651089).

402068207 is a wasteful number, since it uses less digits than its factorization.

402068207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23651088.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 402068207 is about 20051.6385116030. The cubic root of 402068207 is about 738.0740072863.

It can be divided in two parts, 4020 and 68207, that added together give a palindrome (72227).

The spelling of 402068207 in words is "four hundred two million, sixty-eight thousand, two hundred seven".