1405020450 has 48 divisors (see below), whose sum is σ = 3487276800. Its totient is φ = 374368320.

The previous prime is 1405020433. The next prime is 1405020467. The reversal of 1405020450 is 540205041.

1405020450 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1405020433) and next prime (1405020467).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 229327 + ... + 235373.

It is an arithmetic number, because the mean of its divisors is an integer number (72651600).

Almost surely, 2^1405020450 is an apocalyptic number.

1405020450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1405020450 is an abundant number, since it is smaller than the sum of its proper divisors (2082256350).

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

1405020450 is a wasteful number, since it uses less digits than its factorization.

1405020450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7611 (or 7606 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1405020450 is about 37483.6024149227. The cubic root of 1405020450 is about 1120.0245663191.

Adding to 1405020450 its reverse (540205041), we get a palindrome (1945225491).

The spelling of 1405020450 in words is "one billion, four hundred five million, twenty thousand, four hundred fifty".