1004643545440 has 48 divisors (see below), whose sum is σ = 2373610895712. Its totient is φ = 401833626624.

The previous prime is 1004643545407. The next prime is 1004643545467. The reversal of 1004643545440 is 445453464001.

It is a happy number.

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 = 1004643545393 and 1004643545402.

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, 2660917 + ... + 3014923.

It is an arithmetic number, because the mean of its divisors is an integer number (49450226994).

Almost surely, 2^{1004643545440} is an apocalyptic number.

1004643545440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004643545440 is an abundant number, since it is smaller than the sum of its proper divisors (1368967350272).

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

1004643545440 is a wasteful number, since it uses less digits than its factorization.

1004643545440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371759 (or 371751 counting only the distinct ones).

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

The spelling of 1004643545440 in words is "one trillion, four billion, six hundred forty-three million, five hundred forty-five thousand, four hundred forty".