1400842 has 8 divisors (see below), whose sum is σ = 2116800. Its totient is φ = 695244.

The previous prime is 1400821. The next prime is 1400863. The reversal of 1400842 is 2480041.

It is an interprime number because it is at equal distance from previous prime (1400821) and next prime (1400863).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2242 + ... + 2797.

It is an arithmetic number, because the mean of its divisors is an integer number (264600).

2^1400842 is an apocalyptic number.

1400842 is a deficient number, since it is larger than the sum of its proper divisors (715958).

1400842 is a wasteful number, since it uses less digits than its factorization.

1400842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5180.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1400842 is about 1183.5717130787. The cubic root of 1400842 is about 111.8913167633.

Adding to 1400842 its reverse (2480041), we get a palindrome (3880883).

The spelling of 1400842 in words is "one million, four hundred thousand, eight hundred forty-two".