1421163040 has 48 divisors (see below), whose sum is σ = 3662729280. Its totient is φ = 516785920.

The previous prime is 1421163011. The next prime is 1421163091. The reversal of 1421163040 is 403611241.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 401980 + ... + 405499.

It is an arithmetic number, because the mean of its divisors is an integer number (76306860).

Almost surely, 2^1421163040 is an apocalyptic number.

1421163040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421163040 is an abundant number, since it is smaller than the sum of its proper divisors (2241566240).

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

1421163040 is a wasteful number, since it uses less digits than its factorization.

1421163040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807505 (or 807497 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1421163040 is about 37698.3161427669. The cubic root of 1421163040 is about 1124.2976462107.

Adding to 1421163040 its reverse (403611241), we get a palindrome (1824774281).

It can be divided in two parts, 1421 and 163040, that added together give a palindrome (164461).

The spelling of 1421163040 in words is "one billion, four hundred twenty-one million, one hundred sixty-three thousand, forty".