1400485 has 4 divisors (see below), whose sum is σ = 1680588. Its totient is φ = 1120384.
The previous prime is 1400479. The next prime is 1400489. The reversal of 1400485 is 5840041.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 1085764 + 314721 = 1042^2 + 561^2 .
It is a cyclic number.
It is not a de Polignac number, because 1400485 - 25 = 1400453 is a prime.
It is a super-2 number, since 2×14004852 = 3922716470450, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1400489) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140044 + ... + 140053.
It is an arithmetic number, because the mean of its divisors is an integer number (420147).
21400485 is an apocalyptic number.
It is an amenable number.
1400485 is a deficient number, since it is larger than the sum of its proper divisors (280103).
1400485 is an equidigital number, since it uses as much as digits as its factorization.
1400485 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 280102.
The product of its (nonzero) digits is 640, while the sum is 22.
The square root of 1400485 is about 1183.4208887796. The cubic root of 1400485 is about 111.8818109104.
The spelling of 1400485 in words is "one million, four hundred thousand, four hundred eighty-five".
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