1401768 has 24 divisors (see below), whose sum is σ = 3796650. Its totient is φ = 467232.

The previous prime is 1401767. The next prime is 1401791. The reversal of 1401768 is 8671041.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1258884 + 142884 = 1122^2 + 378^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1401761) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9663 + ... + 9806.

2^1401768 is an apocalyptic number.

1401768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1401768 is an abundant number, since it is smaller than the sum of its proper divisors (2394882).

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

1401768 is a wasteful number, since it uses less digits than its factorization.

1401768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19481 (or 19474 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 1401768 is about 1183.9628372546. The cubic root of 1401768 is about 111.9159658761.

The spelling of 1401768 in words is "one million, four hundred one thousand, seven hundred sixty-eight".