1400140000 has 240 divisors, whose sum is σ = 4019688288. Its totient is φ = 470016000.

The previous prime is 1400139991. The next prime is 1400140003. The reversal of 1400140000 is 410041.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400140003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10219932 + ... + 10220068.

Almost surely, 2^1400140000 is an apocalyptic number.

1400140000 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 1400140000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2009844144).

1400140000 is an abundant number, since it is smaller than the sum of its proper divisors (2619548288).

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

1400140000 is an equidigital number, since it uses as much as digits as its factorization.

1400140000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1400140000 is about 37418.4446496644. Note that the first 3 decimals coincide. The cubic root of 1400140000 is about 1118.7262304699.

Adding to 1400140000 its reverse (410041), we get a palindrome (1400550041).

It can be divided in two parts, 1400 and 140000, that multiplied together give a square (196000000 = 14000²).

The spelling of 1400140000 in words is "one billion, four hundred million, one hundred forty thousand".