1421950544 has 40 divisors (see below), whose sum is σ = 3154917120. Its totient is φ = 608185728.

The previous prime is 1421950511. The next prime is 1421950571. The reversal of 1421950544 is 4450591241.

It is a congruent number.

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, 44537 + ... + 69479.

It is an arithmetic number, because the mean of its divisors is an integer number (78872928).

Almost surely, 2^1421950544 is an apocalyptic number.

1421950544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1421950544 is an abundant number, since it is smaller than the sum of its proper divisors (1732966576).

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

1421950544 is a wasteful number, since it uses less digits than its factorization.

1421950544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25467 (or 25461 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 1421950544 is about 37708.7595128771. The cubic root of 1421950544 is about 1124.5052755443.

The spelling of 1421950544 in words is "one billion, four hundred twenty-one million, nine hundred fifty thousand, five hundred forty-four".