1400455 has 8 divisors (see below), whose sum is σ = 1920672. Its totient is φ = 960288.

The previous prime is 1400453. The next prime is 1400479. The reversal of 1400455 is 5540041.

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

It is not a de Polignac number, because 1400455 - 2¹ = 1400453 is a prime.

It is a super-2 number, since 2×1400455² = 3922548414050, 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 (1400453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19972 + ... + 20041.

It is an arithmetic number, because the mean of its divisors is an integer number (240084).

2^1400455 is an apocalyptic number.

1400455 is a deficient number, since it is larger than the sum of its proper divisors (520217).

1400455 is an equidigital number, since it uses as much as digits as its factorization.

1400455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40025.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1400455 is about 1183.4082135933. The cubic root of 1400455 is about 111.8810120257.

Adding to 1400455 its reverse (5540041), we get a palindrome (6940496).

The spelling of 1400455 in words is "one million, four hundred thousand, four hundred fifty-five".