1400550645 has 32 divisors (see below), whose sum is σ = 2419409664. Its totient is φ = 687744000.

The previous prime is 1400550623. The next prime is 1400550649. The reversal of 1400550645 is 5460550041.

It is not a de Polignac number, because 1400550645 - 2¹⁹ = 1400026357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400550649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69240 + ... + 87150.

It is an arithmetic number, because the mean of its divisors is an integer number (75606552).

Almost surely, 2^1400550645 is an apocalyptic number.

1400550645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1400550645 is a deficient number, since it is larger than the sum of its proper divisors (1018859019).

1400550645 is a wasteful number, since it uses less digits than its factorization.

1400550645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18333.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1400550645 is about 37423.9314476713. The cubic root of 1400550645 is about 1118.8355896359.

The spelling of 1400550645 in words is "one billion, four hundred million, five hundred fifty thousand, six hundred forty-five".