44621145 has 32 divisors (see below), whose sum is σ = 80121600. Its totient is φ = 23559552.

The previous prime is 44621123. The next prime is 44621147. The reversal of 44621145 is 54112644.

44621145 is a `hidden beast` number, since 446 + 211 + 4 + 5 = 666.

It is not a de Polignac number, because 44621145 - 2⁸ = 44620889 is a prime.

It is a super-2 number, since 2×44621145² = 3982093162222050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44621147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12301 + ... + 15509.

It is an arithmetic number, because the mean of its divisors is an integer number (2503800).

Almost surely, 2^44621145 is an apocalyptic number.

44621145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

44621145 is a deficient number, since it is larger than the sum of its proper divisors (35500455).

44621145 is a wasteful number, since it uses less digits than its factorization.

44621145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326 (or 3320 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 44621145 is about 6679.9060622137. The cubic root of 44621145 is about 354.6883332149.

Adding to 44621145 its reverse (54112644), we get a palindrome (98733789).

The spelling of 44621145 in words is "forty-four million, six hundred twenty-one thousand, one hundred forty-five".