451851480 has 64 divisors (see below), whose sum is σ = 1506175200. Its totient is φ = 120493440.

The previous prime is 451851473. The next prime is 451851497. The reversal of 451851480 is 84158154.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208111 + ... + 210270.

Almost surely, 2^451851480 is an apocalyptic number.

451851480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451851480 is an abundant number, since it is smaller than the sum of its proper divisors (1054323720).

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

451851480 is a wasteful number, since it uses less digits than its factorization.

451851480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418401 (or 418391 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 451851480 is about 21256.7984419103. The cubic root of 451851480 is about 767.3589621547.

It can be divided in two parts, 45185 and 1480, that added together give a triangular number (46665 = T₃₀₅).

The spelling of 451851480 in words is "four hundred fifty-one million, eight hundred fifty-one thousand, four hundred eighty".