1004144403400 has 48 divisors (see below), whose sum is σ = 2340052727040. Its totient is φ = 400725806400.

The previous prime is 1004144403377. The next prime is 1004144403401. The reversal of 1004144403400 is 43044414001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (1004144403401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5738304 + ... + 5910703.

It is an arithmetic number, because the mean of its divisors is an integer number (48751098480).

Almost surely, 2^{1004144403400} is an apocalyptic number.

1004144403400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004144403400 is an abundant number, since it is smaller than the sum of its proper divisors (1335908323640).

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

1004144403400 is a wasteful number, since it uses less digits than its factorization.

1004144403400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11649454 (or 11649445 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 1004144403400 its reverse (43044414001), we get a palindrome (1047188817401).

The spelling of 1004144403400 in words is "one trillion, four billion, one hundred forty-four million, four hundred three thousand, four hundred".