451426447 has 4 divisors (see below), whose sum is σ = 451541776. Its totient is φ = 451311120.

The previous prime is 451426403. The next prime is 451426463. The reversal of 451426447 is 744624154.

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

It is a cyclic number.

It is not a de Polignac number, because 451426447 - 2¹⁹ = 450902159 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 (451426477) 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, 51579 + ... + 59692.

It is an arithmetic number, because the mean of its divisors is an integer number (112885444).

Almost surely, 2^451426447 is an apocalyptic number.

451426447 is a deficient number, since it is larger than the sum of its proper divisors (115329).

451426447 is a wasteful number, since it uses less digits than its factorization.

451426447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115328.

The product of its digits is 107520, while the sum is 37.

The square root of 451426447 is about 21246.7985117758. The cubic root of 451426447 is about 767.1182818909.

It can be divided in two parts, 45 and 1426447, that multiplied together give a triangular number (64190115 = T₁₁₃₃₀).

The spelling of 451426447 in words is "four hundred fifty-one million, four hundred twenty-six thousand, four hundred forty-seven".