1401402404040 has 64 divisors (see below), whose sum is σ = 4306748866560. Its totient is φ = 364592494080.

The previous prime is 1401402404033. The next prime is 1401402404047. The reversal of 1401402404040 is 404042041041.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1401402404033) and next prime (1401402404047).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1401402404040.

It is not an unprimeable number, because it can be changed into a prime (1401402404047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142414024 + ... + 142423863.

It is an arithmetic number, because the mean of its divisors is an integer number (67292951040).

Almost surely, 2^{1401402404040} is an apocalyptic number.

1401402404040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401402404040 is an abundant number, since it is smaller than the sum of its proper divisors (2905346462520).

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

1401402404040 is a wasteful number, since it uses less digits than its factorization.

1401402404040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284837942 (or 284837938 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 1401402404040 its reverse (404042041041), we get a palindrome (1805444445081).

The spelling of 1401402404040 in words is "one trillion, four hundred one billion, four hundred two million, four hundred four thousand, forty".