44601989 has 2 divisors, whose sum is σ = 44601990. Its totient is φ = 44601988.

The previous prime is 44601929. The next prime is 44602001. The reversal of 44601989 is 98910644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40768225 + 3833764 = 6385^2 + 1958^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44601989 is a prime.

It is a super-2 number, since 2×44601989² = 3978674845512242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44601929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22300994 + 22300995.

It is an arithmetic number, because the mean of its divisors is an integer number (22300995).

Almost surely, 2^44601989 is an apocalyptic number.

It is an amenable number.

44601989 is a deficient number, since it is larger than the sum of its proper divisors (1).

44601989 is an equidigital number, since it uses as much as digits as its factorization.

44601989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 44601989 is about 6678.4720557924. The cubic root of 44601989 is about 354.6375696720.

The spelling of 44601989 in words is "forty-four million, six hundred one thousand, nine hundred eighty-nine".