406002068 has 6 divisors (see below), whose sum is σ = 710503626. Its totient is φ = 203001032.

The previous prime is 406002067. The next prime is 406002119. The reversal of 406002068 is 860200604.

It can be written as a sum of positive squares in only one way, i.e., 207417604 + 198584464 = 14402^2 + 14092^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406002061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50750255 + ... + 50750262.

It is an arithmetic number, because the mean of its divisors is an integer number (118417271).

Almost surely, 2^406002068 is an apocalyptic number.

It is an amenable number.

406002068 is a deficient number, since it is larger than the sum of its proper divisors (304501558).

406002068 is a wasteful number, since it uses less digits than its factorization.

406002068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101500521 (or 101500519 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 406002068 is about 20149.4929961029. The cubic root of 406002068 is about 740.4733202719.

The spelling of 406002068 in words is "four hundred six million, two thousand, sixty-eight".