451269040 has 20 divisors (see below), whose sum is σ = 1049200704. Its totient is φ = 180507584.

The previous prime is 451269023. The next prime is 451269061. The reversal of 451269040 is 40962154.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 451268993 and 451269011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2820352 + ... + 2820511.

Almost surely, 2^451269040 is an apocalyptic number.

451269040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451269040 is an abundant number, since it is smaller than the sum of its proper divisors (597931664).

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

451269040 is a wasteful number, since it uses less digits than its factorization.

451269040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5640876 (or 5640870 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 451269040 is about 21243.0939366186. The cubic root of 451269040 is about 767.0291098707.

The spelling of 451269040 in words is "four hundred fifty-one million, two hundred sixty-nine thousand, forty".