1400401322420 has 24 divisors (see below), whose sum is σ = 2941601475624. Its totient is φ = 560016014976.

The previous prime is 1400401322413. The next prime is 1400401322549. The reversal of 1400401322420 is 242231040041.

It can be written as a sum of positive squares in 4 ways, for example, as 7382933776 + 1393018388644 = 85924^2 + 1180262^2 .

It is a super-2 number, since 2×1400401322420² (a number of 25 digits) contains 22 as substring.

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, 8952647 + ... + 9107726.

It is an arithmetic number, because the mean of its divisors is an integer number (122566728151).

Almost surely, 2^{1400401322420} is an apocalyptic number.

1400401322420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400401322420 is an abundant number, since it is smaller than the sum of its proper divisors (1541200153204).

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

1400401322420 is a wasteful number, since it uses less digits than its factorization.

1400401322420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18064259 (or 18064257 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 1400401322420 its reverse (242231040041), we get a palindrome (1642632362461).

The spelling of 1400401322420 in words is "one trillion, four hundred billion, four hundred one million, three hundred twenty-two thousand, four hundred twenty".