400871453 has 4 divisors (see below), whose sum is σ = 403797660. Its totient is φ = 397945248.

The previous prime is 400871417. The next prime is 400871461. The reversal of 400871453 is 354178004.

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 331349209 + 69522244 = 18203^2 + 8338^2 .

It is a cyclic number.

It is not a de Polignac number, because 400871453 - 2⁸ = 400871197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400871483) 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, 1462898 + ... + 1463171.

It is an arithmetic number, because the mean of its divisors is an integer number (100949415).

Almost surely, 2^400871453 is an apocalyptic number.

It is an amenable number.

400871453 is a deficient number, since it is larger than the sum of its proper divisors (2926207).

400871453 is a wasteful number, since it uses less digits than its factorization.

400871453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926206.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 400871453 is about 20021.7744718094. The cubic root of 400871453 is about 737.3409883361.

The spelling of 400871453 in words is "four hundred million, eight hundred seventy-one thousand, four hundred fifty-three".