44630421 has 16 divisors (see below), whose sum is σ = 67012608. Its totient is φ = 26175600.

The previous prime is 44630413. The next prime is 44630447. The reversal of 44630421 is 12403644.

It is not a de Polignac number, because 44630421 - 2³ = 44630413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44630391 and 44630400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44630461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20791 + ... + 22836.

It is an arithmetic number, because the mean of its divisors is an integer number (4188288).

Almost surely, 2^44630421 is an apocalyptic number.

It is an amenable number.

44630421 is a deficient number, since it is larger than the sum of its proper divisors (22382187).

44630421 is a wasteful number, since it uses less digits than its factorization.

44630421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43672.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 44630421 is about 6680.6003472742. The cubic root of 44630421 is about 354.7129094633.

The spelling of 44630421 in words is "forty-four million, six hundred thirty thousand, four hundred twenty-one".