445552040 has 32 divisors (see below), whose sum is σ = 1012835880. Its totient is φ = 176381952.

The previous prime is 445552013. The next prime is 445552073. The reversal of 445552040 is 40255544.

It can be written as a sum of positive squares in 4 ways, for example, as 193822084 + 251729956 = 13922^2 + 15866^2 .

It is a super-3 number, since 3×445552040³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 445551994 and 445552012.

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, 53537 + ... + 61296.

Almost surely, 2^445552040 is an apocalyptic number.

445552040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

445552040 is an abundant number, since it is smaller than the sum of its proper divisors (567283840).

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

445552040 is a wasteful number, since it uses less digits than its factorization.

445552040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114941 (or 114937 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 445552040 is about 21108.1036571266. The cubic root of 445552040 is about 763.7762426885.

The spelling of 445552040 in words is "four hundred forty-five million, five hundred fifty-two thousand, forty".