400105453 has 4 divisors (see below), whose sum is σ = 436478688. Its totient is φ = 363732220.

The previous prime is 400105417. The next prime is 400105469. The reversal of 400105453 is 354501004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 400105453 - 2¹⁷ = 399974381 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 (400105403) 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, 18186601 + ... + 18186622.

It is an arithmetic number, because the mean of its divisors is an integer number (109119672).

Almost surely, 2^400105453 is an apocalyptic number.

It is an amenable number.

400105453 is a deficient number, since it is larger than the sum of its proper divisors (36373235).

400105453 is a wasteful number, since it uses less digits than its factorization.

400105453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36373234.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 400105453 is about 20002.6361512677. The cubic root of 400105453 is about 736.8710427346.

Adding to 400105453 its reverse (354501004), we get a palindrome (754606457).

The spelling of 400105453 in words is "four hundred million, one hundred five thousand, four hundred fifty-three".