400273385453 has 8 divisors (see below), whose sum is σ = 427112193600. Its totient is φ = 374011756128.

The previous prime is 400273385417. The next prime is 400273385509. The reversal of 400273385453 is 354583372004.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400273385453 - 2⁶ = 400273385389 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 (400273385753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144293273 + ... + 144296046.

It is an arithmetic number, because the mean of its divisors is an integer number (53389024200).

Almost surely, 2^400273385453 is an apocalyptic number.

It is an amenable number.

400273385453 is a deficient number, since it is larger than the sum of its proper divisors (26838808147).

400273385453 is a wasteful number, since it uses less digits than its factorization.

400273385453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288589411.

The product of its (nonzero) digits is 1209600, while the sum is 44.

The spelling of 400273385453 in words is "four hundred billion, two hundred seventy-three million, three hundred eighty-five thousand, four hundred fifty-three".