1400746 has 16 divisors (see below), whose sum is σ = 2254464. Its totient is φ = 651024.

The previous prime is 1400731. The next prime is 1400747. The reversal of 1400746 is 6470041.

1400746 = 75² + 76² + ... + 166².

It is a zygodrome in base 4.

It is not an unprimeable number, because it can be changed into a prime (1400747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1291 + ... + 2113.

It is an arithmetic number, because the mean of its divisors is an integer number (140904).

2^1400746 is an apocalyptic number.

1400746 is a deficient number, since it is larger than the sum of its proper divisors (853718).

1400746 is a wasteful number, since it uses less digits than its factorization.

1400746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1400746 is about 1183.5311571733. The cubic root of 1400746 is about 111.8887607263. Note that the first 3 decimals are identical.

Adding to 1400746 its reverse (6470041), we get a palindrome (7870787).

The spelling of 1400746 in words is "one million, four hundred thousand, seven hundred forty-six".