400453454 has 4 divisors (see below), whose sum is σ = 600680184. Its totient is φ = 200226726.

The previous prime is 400453433. The next prime is 400453457. The reversal of 400453454 is 454354004.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400453457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100113362 + ... + 100113365.

It is an arithmetic number, because the mean of its divisors is an integer number (150170046).

Almost surely, 2^400453454 is an apocalyptic number.

400453454 is a deficient number, since it is larger than the sum of its proper divisors (200226730).

400453454 is a wasteful number, since it uses less digits than its factorization.

400453454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200226729.

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 400453454 is about 20011.3331389990. Note that the first 3 decimals coincide. The cubic root of 400453454 is about 737.0846177207.

The spelling of 400453454 in words is "four hundred million, four hundred fifty-three thousand, four hundred fifty-four".