450624256240 has 40 divisors (see below), whose sum is σ = 1051429922928. Its totient is φ = 179608235520.

The previous prime is 450624256217. The next prime is 450624256259. The reversal of 450624256240 is 42652426054.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 450624256193 and 450624256202.

It is a congruent number.

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, 10000302 + ... + 10045261.

Almost surely, 2^450624256240 is an apocalyptic number.

450624256240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

450624256240 is an abundant number, since it is smaller than the sum of its proper divisors (600805666688).

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

450624256240 is a wasteful number, since it uses less digits than its factorization.

450624256240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20045857 (or 20045851 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

The spelling of 450624256240 in words is "four hundred fifty billion, six hundred twenty-four million, two hundred fifty-six thousand, two hundred forty".