1400540320 has 192 divisors, whose sum is σ = 3584673792. Its totient is φ = 516096000.

The previous prime is 1400540209. The next prime is 1400540327. The reversal of 1400540320 is 230450041.

It is not an unprimeable number, because it can be changed into a prime (1400540327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14438512 + ... + 14438608.

It is an arithmetic number, because the mean of its divisors is an integer number (18670176).

Almost surely, 2^1400540320 is an apocalyptic number.

1400540320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1400540320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1792336896).

1400540320 is an abundant number, since it is smaller than the sum of its proper divisors (2184133472).

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

1400540320 is a wasteful number, since it uses less digits than its factorization.

1400540320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1400540320 is about 37423.7935009267. The cubic root of 1400540320 is about 1118.8328402397.

Adding to 1400540320 its reverse (230450041), we get a palindrome (1630990361).

The spelling of 1400540320 in words is "one billion, four hundred million, five hundred forty thousand, three hundred twenty".