1648742958 has 16 divisors (see below), whose sum is σ = 3663873360. Its totient is φ = 549580968.

The previous prime is 1648742941. The next prime is 1648742969. The reversal of 1648742958 is 8592478461.

It is a happy number.

1648742958 is a `hidden beast` number, since 164 + 8 + 7 + 429 + 58 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 30532277 = 1648742958 / (1 + 6 + 4 + 8 + 7 + 4 + 2 + 9 + 5 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15266085 + ... + 15266192.

It is an arithmetic number, because the mean of its divisors is an integer number (228992085).

Almost surely, 2^1648742958 is an apocalyptic number.

1648742958 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1648742958 is an abundant number, since it is smaller than the sum of its proper divisors (2015130402).

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

1648742958 is a wasteful number, since it uses less digits than its factorization.

1648742958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30532288 (or 30532282 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 1648742958 is about 40604.7159576323. The cubic root of 1648742958 is about 1181.3655927194.

The spelling of 1648742958 in words is "one billion, six hundred forty-eight million, seven hundred forty-two thousand, nine hundred fifty-eight".