1400488 has 8 divisors (see below), whose sum is σ = 2625930. Its totient is φ = 700240.

The previous prime is 1400479. The next prime is 1400489. The reversal of 1400488 is 8840041.

1400488 is nontrivially palindromic in base 5.

It can be written as a sum of positive squares in only one way, i.e., 1397124 + 3364 = 1182^2 + 58^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1400488² = 3922733276288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1400489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87523 + ... + 87538.

2^1400488 is an apocalyptic number.

It is an amenable number.

1400488 is a deficient number, since it is larger than the sum of its proper divisors (1225442).

1400488 is a wasteful number, since it uses less digits than its factorization.

1400488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175067 (or 175063 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 1400488 is about 1183.4221562908. The cubic root of 1400488 is about 111.8818907983.

The spelling of 1400488 in words is "one million, four hundred thousand, four hundred eighty-eight".