1648590941 has 24 divisors (see below), whose sum is σ = 1790552064. Its totient is φ = 1516664160.

The previous prime is 1648590913. The next prime is 1648590949. The reversal of 1648590941 is 1490958461.

It is a de Polignac number, because none of the positive numbers 2^k-1648590941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648590949) 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, 1516100 + ... + 1517186.

It is an arithmetic number, because the mean of its divisors is an integer number (74606336).

Almost surely, 2^1648590941 is an apocalyptic number.

It is an amenable number.

1648590941 is a deficient number, since it is larger than the sum of its proper divisors (141961123).

1648590941 is a wasteful number, since it uses less digits than its factorization.

1648590941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241 (or 1218 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 1648590941 is about 40602.8440013751. The cubic root of 1648590941 is about 1181.3292836084.

The spelling of 1648590941 in words is "one billion, six hundred forty-eight million, five hundred ninety thousand, nine hundred forty-one".