1001404013240 has 32 divisors (see below), whose sum is σ = 2253188579760. Its totient is φ = 400556352000.

The previous prime is 1001404013131. The next prime is 1001404013257. The reversal of 1001404013240 is 423104041001.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 4712075 + ... + 4920005.

Almost surely, 2^{1001404013240} is an apocalyptic number.

1001404013240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001404013240 is an abundant number, since it is smaller than the sum of its proper divisors (1251784566520).

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

1001404013240 is a wasteful number, since it uses less digits than its factorization.

1001404013240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328343 (or 328339 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1001404013240 its reverse (423104041001), we get a palindrome (1424508054241).

The spelling of 1001404013240 in words is "one trillion, one billion, four hundred four million, thirteen thousand, two hundred forty".