49440645 has 16 divisors (see below), whose sum is σ = 87894720. Its totient is φ = 26368272.

The previous prime is 49440631. The next prime is 49440659. The reversal of 49440645 is 54604494.

49440645 is a `hidden beast` number, since 4 + 9 + 4 + 4 + 0 + 645 = 666.

It is an interprime number because it is at equal distance from previous prime (49440631) and next prime (49440659).

It is not a de Polignac number, because 49440645 - 2⁵ = 49440613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182979 + ... + 183248.

It is an arithmetic number, because the mean of its divisors is an integer number (5493420).

Almost surely, 2^49440645 is an apocalyptic number.

49440645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49440645 is a deficient number, since it is larger than the sum of its proper divisors (38454075).

49440645 is a wasteful number, since it uses less digits than its factorization.

49440645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366241 (or 366235 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 49440645 is about 7031.4041983092. The cubic root of 49440645 is about 367.0242072597.

The spelling of 49440645 in words is "forty-nine million, four hundred forty thousand, six hundred forty-five".