2450641644 has 72 divisors (see below), whose sum is σ = 6764481360. Its totient is φ = 741888000.

The previous prime is 2450641643. The next prime is 2450641663. The reversal of 2450641644 is 4461460542.

2450641644 is a `hidden beast` number, since 2 + 4 + 5 + 0 + 6 + 4 + 1 + 644 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2450641599 and 2450641608.

It is not an unprimeable number, because it can be changed into a prime (2450641643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 508044 + ... + 512844.

It is an arithmetic number, because the mean of its divisors is an integer number (93951130).

Almost surely, 2^2450641644 is an apocalyptic number.

It is an amenable number.

2450641644 is an abundant number, since it is smaller than the sum of its proper divisors (4313839716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2450641644 is a wasteful number, since it uses less digits than its factorization.

2450641644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111 (or 6106 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The square root of 2450641644 is about 49503.9558419325. The cubic root of 2450641644 is about 1348.2174267061.

The spelling of 2450641644 in words is "two billion, four hundred fifty million, six hundred forty-one thousand, six hundred forty-four".