445034274840 has 128 divisors (see below), whose sum is σ = 1485764164800. Its totient is φ = 118490480640.

The previous prime is 445034274827. The next prime is 445034274847. The reversal of 445034274840 is 48472430544.

445034274840 is a `hidden beast` number, since 44 + 503 + 4 + 27 + 4 + 84 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445034274847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 370854 + ... + 1013706.

Almost surely, 2^445034274840 is an apocalyptic number.

445034274840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445034274840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (742882082400).

445034274840 is an abundant number, since it is smaller than the sum of its proper divisors (1040729889960).

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

445034274840 is a wasteful number, since it uses less digits than its factorization.

445034274840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643514 (or 643504 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 45.

The spelling of 445034274840 in words is "four hundred forty-five billion, thirty-four million, two hundred seventy-four thousand, eight hundred forty".