1400505 has 16 divisors (see below), whose sum is σ = 2273280. Its totient is φ = 736128.

The previous prime is 1400489. The next prime is 1400507. The reversal of 1400505 is 5050041.

It is not a de Polignac number, because 1400505 - 2⁴ = 1400489 is a prime.

It is a super-2 number, since 2×1400505² = 3922828510050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

1400505 is a modest number, since divided by 505 gives 140 as remainder.

It is not an unprimeable number, because it can be changed into a prime (1400507) 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 15 ways as a sum of consecutive naturals, for example, 456 + ... + 1734.

It is an arithmetic number, because the mean of its divisors is an integer number (142080).

2^1400505 is an apocalyptic number.

1400505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1400505 is a deficient number, since it is larger than the sum of its proper divisors (872775).

1400505 is a wasteful number, since it uses less digits than its factorization.

1400505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 1400505 is about 1183.4293388285. The cubic root of 1400505 is about 111.8823434939.

Adding to 1400505 its reverse (5050041), we get a palindrome (6450546).

The spelling of 1400505 in words is "one million, four hundred thousand, five hundred five".