1400928 has 24 divisors (see below), whose sum is σ = 3677688. Its totient is φ = 466944.

The previous prime is 1400923. The next prime is 1400939. The reversal of 1400928 is 8290041.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×1400928² = 3925198522368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1400898 and 1400907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7201 + ... + 7392.

It is an arithmetic number, because the mean of its divisors is an integer number (153237).

2^1400928 is an apocalyptic number.

It is an amenable number.

1400928 is an abundant number, since it is smaller than the sum of its proper divisors (2276760).

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

1400928 is a wasteful number, since it uses less digits than its factorization.

1400928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14606 (or 14598 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1400928 is about 1183.6080432305. The cubic root of 1400928 is about 111.8936064472.

Adding to 1400928 its reverse (8290041), we get a palindrome (9690969).

The spelling of 1400928 in words is "one million, four hundred thousand, nine hundred twenty-eight".