1649241250 has 40 divisors (see below), whose sum is σ = 3135046464. Its totient is φ = 650370000.

The previous prime is 1649241229. The next prime is 1649241257. The reversal of 1649241250 is 521429461.

It is not an unprimeable number, because it can be changed into a prime (1649241257) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 79459 + ... + 98041.

Almost surely, 2^1649241250 is an apocalyptic number.

1649241250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1649241250 is a deficient number, since it is larger than the sum of its proper divisors (1485805214).

1649241250 is an equidigital number, since it uses as much as digits as its factorization.

1649241250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18676 (or 18661 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 1649241250 is about 40610.8513823584. The cubic root of 1649241250 is about 1181.4845936281.

The spelling of 1649241250 in words is "one billion, six hundred forty-nine million, two hundred forty-one thousand, two hundred fifty".