1401398 has 12 divisors (see below), whose sum is σ = 2147460. Its totient is φ = 685860.

The previous prime is 1401377. The next prime is 1401401. The reversal of 1401398 is 8931041.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10013 + ... + 10151.

It is an arithmetic number, because the mean of its divisors is an integer number (178955).

2^1401398 is an apocalyptic number.

1401398 is a deficient number, since it is larger than the sum of its proper divisors (746062).

1401398 is an equidigital number, since it uses as much as digits as its factorization.

1401398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1401398 is about 1183.8065720378. The cubic root of 1401398 is about 111.9061181811.

The spelling of 1401398 in words is "one million, four hundred one thousand, three hundred ninety-eight".