1401078 has 16 divisors (see below), whose sum is σ = 3202560. Its totient is φ = 400296.

The previous prime is 1401067. The next prime is 1401083. The reversal of 1401078 is 8701041.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16638 + ... + 16721.

It is an arithmetic number, because the mean of its divisors is an integer number (200160).

2^1401078 is an apocalyptic number.

1401078 is an abundant number, since it is smaller than the sum of its proper divisors (1801482).

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

1401078 is a wasteful number, since it uses less digits than its factorization.

1401078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33371.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 1401078 is about 1183.6714071059. The cubic root of 1401078 is about 111.8975998578.

The spelling of 1401078 in words is "one million, four hundred one thousand, seventy-eight".