1401253267240 has 32 divisors (see below), whose sum is σ = 3318757740000. Its totient is φ = 531001237824.

The previous prime is 1401253267217. The next prime is 1401253267247. The reversal of 1401253267240 is 427623521041.

It is a self number, because there is not a number n which added to its sum of digits gives 1401253267240.

It is not an unprimeable number, because it can be changed into a prime (1401253267247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 921876390 + ... + 921877909.

It is an arithmetic number, because the mean of its divisors is an integer number (103711179375).

Almost surely, 2^{1401253267240} is an apocalyptic number.

1401253267240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401253267240 is an abundant number, since it is smaller than the sum of its proper divisors (1917504472760).

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

1401253267240 is a wasteful number, since it uses less digits than its factorization.

1401253267240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843754329 (or 1843754325 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

Adding to 1401253267240 its reverse (427623521041), we get a palindrome (1828876788281).

The spelling of 1401253267240 in words is "one trillion, four hundred one billion, two hundred fifty-three million, two hundred sixty-seven thousand, two hundred forty".