1400530 has 8 divisors (see below), whose sum is σ = 2520972. Its totient is φ = 560208.

The previous prime is 1400527. The next prime is 1400543. The reversal of 1400530 is 350041.

It can be written as a sum of positive squares in 2 ways, for example, as 1352569 + 47961 = 1163^2 + 219^2 .

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

It is a super-2 number, since 2×1400530² = 3922968561800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1400530.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70017 + ... + 70036.

2^1400530 is an apocalyptic number.

1400530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1400530 is a deficient number, since it is larger than the sum of its proper divisors (1120442).

1400530 is a wasteful number, since it uses less digits than its factorization.

1400530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140060.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 1400530 is about 1183.4399013047. The cubic root of 1400530 is about 111.8830092161.

Adding to 1400530 its reverse (350041), we get a palindrome (1750571).

The spelling of 1400530 in words is "one million, four hundred thousand, five hundred thirty".