1400032140 has 48 divisors (see below), whose sum is σ = 4221637728. Its totient is φ = 344623104.

The previous prime is 1400032087. The next prime is 1400032163. The reversal of 1400032140 is 412300041.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 896677 + ... + 898236.

It is an arithmetic number, because the mean of its divisors is an integer number (87950786).

Almost surely, 2^1400032140 is an apocalyptic number.

1400032140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400032140 is an abundant number, since it is smaller than the sum of its proper divisors (2821605588).

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

1400032140 is a wasteful number, since it uses less digits than its factorization.

1400032140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794938 (or 1794936 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1400032140 is about 37417.0033540902. The cubic root of 1400032140 is about 1118.6975026498.

Adding to 1400032140 its reverse (412300041), we get a palindrome (1812332181).

The spelling of 1400032140 in words is "one billion, four hundred million, thirty-two thousand, one hundred forty".