451223016 has 32 divisors (see below), whose sum is σ = 1177104960. Its totient is φ = 143868032.

The previous prime is 451222997. The next prime is 451223023. The reversal of 451223016 is 610322154.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408165 + ... + 409268.

It is an arithmetic number, because the mean of its divisors is an integer number (36784530).

Almost surely, 2^451223016 is an apocalyptic number.

451223016 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

451223016 is an abundant number, since it is smaller than the sum of its proper divisors (725881944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

451223016 is a wasteful number, since it uses less digits than its factorization.

451223016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817465 (or 817461 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 451223016 is about 21242.0106392968. The cubic root of 451223016 is about 767.0030330778.

The spelling of 451223016 in words is "four hundred fifty-one million, two hundred twenty-three thousand, sixteen".