1400550 has 24 divisors (see below), whose sum is σ = 3473736. Its totient is φ = 373440.

The previous prime is 1400543. The next prime is 1400557. The reversal of 1400550 is 550041.

It is an interprime number because it is at equal distance from previous prime (1400543) and next prime (1400557).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400557) 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 11 ways as a sum of consecutive naturals, for example, 4519 + ... + 4818.

It is an arithmetic number, because the mean of its divisors is an integer number (144739).

2^1400550 is an apocalyptic number.

1400550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1400550 is an abundant number, since it is smaller than the sum of its proper divisors (2073186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1400550 is a wasteful number, since it uses less digits than its factorization.

1400550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9352 (or 9347 counting only the distinct ones).

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

The square root of 1400550 is about 1183.4483512177. The cubic root of 1400550 is about 111.8835417882.

Adding to 1400550 its reverse (550041), we get a palindrome (1950591).

The spelling of 1400550 in words is "one million, four hundred thousand, five hundred fifty".