44749019 has 4 divisors (see below), whose sum is σ = 51141744. Its totient is φ = 38356296.

The previous prime is 44748973. The next prime is 44749037. The reversal of 44749019 is 91094744.

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

It is a cyclic number.

It is not a de Polignac number, because 44749019 - 2⁸ = 44748763 is a prime.

It is a super-2 number, since 2×44749019² = 4004949402924722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44749069) 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, 3196352 + ... + 3196365.

It is an arithmetic number, because the mean of its divisors is an integer number (12785436).

Almost surely, 2^44749019 is an apocalyptic number.

44749019 is a deficient number, since it is larger than the sum of its proper divisors (6392725).

44749019 is an equidigital number, since it uses as much as digits as its factorization.

44749019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6392724.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 44749019 is about 6689.4707563454. The cubic root of 44749019 is about 355.0268286277.

The spelling of 44749019 in words is "forty-four million, seven hundred forty-nine thousand, nineteen".