400076269 has 4 divisors (see below), whose sum is σ = 401633244. Its totient is φ = 398519296.

The previous prime is 400076239. The next prime is 400076273. The reversal of 400076269 is 962670004.

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 370100644 + 29975625 = 19238^2 + 5475^2 .

It is a cyclic number.

It is not a de Polignac number, because 400076269 - 2¹³ = 400068077 is a prime.

It is a super-2 number, since 2×400076269² = 320122042033920722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400076219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 778102 + ... + 778615.

It is an arithmetic number, because the mean of its divisors is an integer number (100408311).

Almost surely, 2^400076269 is an apocalyptic number.

It is an amenable number.

400076269 is a deficient number, since it is larger than the sum of its proper divisors (1556975).

400076269 is a wasteful number, since it uses less digits than its factorization.

400076269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556974.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 400076269 is about 20001.9066341187. The cubic root of 400076269 is about 736.8531263184.

The spelling of 400076269 in words is "four hundred million, seventy-six thousand, two hundred sixty-nine".