1401642 has 24 divisors (see below), whose sum is σ = 3313440. Its totient is φ = 424680.

The previous prime is 1401641. The next prime is 1401679. The reversal of 1401642 is 2461041.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1401641) 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, 3342 + ... + 3737.

It is an arithmetic number, because the mean of its divisors is an integer number (138060).

2^1401642 is an apocalyptic number.

1401642 is an abundant number, since it is smaller than the sum of its proper divisors (1911798).

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

1401642 is a wasteful number, since it uses less digits than its factorization.

1401642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7098 (or 7095 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1401642 is about 1183.9096249292. The cubic root of 1401642 is about 111.9126125314.

Adding to 1401642 its reverse (2461041), we get a palindrome (3862683).

The spelling of 1401642 in words is "one million, four hundred one thousand, six hundred forty-two".