1400206550 has 24 divisors (see below), whose sum is σ = 2616746952. Its totient is φ = 557424000.

The previous prime is 1400206529. The next prime is 1400206553. The reversal of 1400206550 is 556020041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400206553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55811 + ... + 76910.

It is an arithmetic number, because the mean of its divisors is an integer number (109031123).

Almost surely, 2^1400206550 is an apocalyptic number.

1400206550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1400206550 is a deficient number, since it is larger than the sum of its proper divisors (1216540402).

1400206550 is a wasteful number, since it uses less digits than its factorization.

1400206550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132944 (or 132939 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1400206550 is about 37419.3339064179. Note that the first 3 decimals coincide. The cubic root of 1400206550 is about 1118.7439549001.

Adding to 1400206550 its reverse (556020041), we get a palindrome (1956226591).

The spelling of 1400206550 in words is "one billion, four hundred million, two hundred six thousand, five hundred fifty".