1399068 has 36 divisors (see below), whose sum is σ = 3859128. Its totient is φ = 423840.

The previous prime is 1399063. The next prime is 1399109. The reversal of 1399068 is 8609931.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1371 + ... + 2162.

It is an arithmetic number, because the mean of its divisors is an integer number (107198).

2^1399068 is an apocalyptic number.

1399068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1399068 is an abundant number, since it is smaller than the sum of its proper divisors (2460060).

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

1399068 is a wasteful number, since it uses less digits than its factorization.

1399068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3554 (or 3549 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1399068 is about 1182.8220491689. The cubic root of 1399068 is about 111.8440644572.

The spelling of 1399068 in words is "one million, three hundred ninety-nine thousand, sixty-eight".