400262029 has 2 divisors, whose sum is σ = 400262030. Its totient is φ = 400262028.

The previous prime is 400261997. The next prime is 400262117. The reversal of 400262029 is 920262004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 395413225 + 4848804 = 19885^2 + 2202^2 .

It is a cyclic number.

It is not a de Polignac number, because 400262029 - 2⁵ = 400261997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400261994 and 400262012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400262129) 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 as a sum of consecutive naturals, namely, 200131014 + 200131015.

It is an arithmetic number, because the mean of its divisors is an integer number (200131015).

Almost surely, 2^400262029 is an apocalyptic number.

It is an amenable number.

400262029 is a deficient number, since it is larger than the sum of its proper divisors (1).

400262029 is an equidigital number, since it uses as much as digits as its factorization.

400262029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 400262029 is about 20006.5496525513. The cubic root of 400262029 is about 736.9671517915.

Subtracting from 400262029 its sum of digits (25), we obtain a palindrome (400262004).

The spelling of 400262029 in words is "four hundred million, two hundred sixty-two thousand, twenty-nine".