451945423 has 16 divisors (see below), whose sum is σ = 478690560. Its totient is φ = 425841856.

The previous prime is 451945411. The next prime is 451945427. The reversal of 451945423 is 324549154.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-451945423 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 (451945427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 558243 + ... + 559051.

It is an arithmetic number, because the mean of its divisors is an integer number (29918160).

Almost surely, 2^451945423 is an apocalyptic number.

451945423 is a deficient number, since it is larger than the sum of its proper divisors (26745137).

451945423 is a wasteful number, since it uses less digits than its factorization.

451945423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166.

The product of its digits is 86400, while the sum is 37.

The square root of 451945423 is about 21259.0080436506. The cubic root of 451945423 is about 767.4121381878.

The spelling of 451945423 in words is "four hundred fifty-one million, nine hundred forty-five thousand, four hundred twenty-three".