44421240497 has 4 divisors (see below), whose sum is σ = 44422871796. Its totient is φ = 44419609200.

The previous prime is 44421240491. The next prime is 44421240503. The reversal of 44421240497 is 79404212444.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (44421240491) and next prime (44421240503).

It can be written as a sum of positive squares in 2 ways, for example, as 35772426496 + 8648814001 = 189136^2 + 92999^2 .

It is a cyclic number.

It is not a de Polignac number, because 44421240497 - 2⁴ = 44421240481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44421240491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 774098 + ... + 829499.

It is an arithmetic number, because the mean of its divisors is an integer number (11105717949).

Almost surely, 2^44421240497 is an apocalyptic number.

It is an amenable number.

44421240497 is a deficient number, since it is larger than the sum of its proper divisors (1631299).

44421240497 is a wasteful number, since it uses less digits than its factorization.

44421240497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631298.

The product of its (nonzero) digits is 258048, while the sum is 41.

The spelling of 44421240497 in words is "forty-four billion, four hundred twenty-one million, two hundred forty thousand, four hundred ninety-seven".