1044552421 has 8 divisors (see below), whose sum is σ = 1178805600. Its totient is φ = 916848240.

The previous prime is 1044552419. The next prime is 1044552499. The reversal of 1044552421 is 1242554401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1044552421 - 2¹ = 1044552419 is a prime.

It is a super-2 number, since 2×1044552421² = 2182179520433922482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1044552421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044552221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1636911 + ... + 1637548.

It is an arithmetic number, because the mean of its divisors is an integer number (147350700).

Almost surely, 2^1044552421 is an apocalyptic number.

1044552421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1044552421 is a deficient number, since it is larger than the sum of its proper divisors (134253179).

1044552421 is a wasteful number, since it uses less digits than its factorization.

1044552421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3274499.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 1044552421 is about 32319.5362126377. The cubic root of 1044552421 is about 1014.6355623375.

The spelling of 1044552421 in words is "one billion, forty-four million, five hundred fifty-two thousand, four hundred twenty-one".