1400643160 has 128 divisors (see below), whose sum is σ = 3750364800. Its totient is φ = 460615680.

The previous prime is 1400643113. The next prime is 1400643163. The reversal of 1400643160 is 613460041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400643163) 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, 1469244 + ... + 1470196.

It is an arithmetic number, because the mean of its divisors is an integer number (29299725).

Almost surely, 2^1400643160 is an apocalyptic number.

1400643160 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 1400643160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1875182400).

1400643160 is an abundant number, since it is smaller than the sum of its proper divisors (2349721640).

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

1400643160 is a wasteful number, since it uses less digits than its factorization.

1400643160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181 (or 1177 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1400643160 is about 37425.1674678952. The cubic root of 1400643160 is about 1118.8602244217.

The spelling of 1400643160 in words is "one billion, four hundred million, six hundred forty-three thousand, one hundred sixty".