1400128 has 28 divisors (see below), whose sum is σ = 2816352. Its totient is φ = 690560.

The previous prime is 1400107. The next prime is 1400131. The reversal of 1400128 is 8210041.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8301 + ... + 8467.

It is an arithmetic number, because the mean of its divisors is an integer number (100584).

2^1400128 is an apocalyptic number.

It is an amenable number.

1400128 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1400128 is a wasteful number, since it uses less digits than its factorization.

1400128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1400128 is about 1183.2700452559. The cubic root of 1400128 is about 111.8723034420.

Adding to 1400128 its reverse (8210041), we get a palindrome (9610169).

The spelling of 1400128 in words is "one million, four hundred thousand, one hundred twenty-eight".