1649135190 has 32 divisors (see below), whose sum is σ = 4130009856. Its totient is φ = 420648800.

The previous prime is 1649135093. The next prime is 1649135207. The reversal of 1649135190 is 915319461.

It is a super-2 number, since 2×1649135190² = 5439293749792672200, which contains 22 as substring.

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, 1194336 + ... + 1195715.

It is an arithmetic number, because the mean of its divisors is an integer number (129062808).

Almost surely, 2^1649135190 is an apocalyptic number.

1649135190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1649135190 is an abundant number, since it is smaller than the sum of its proper divisors (2480874666).

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

1649135190 is a wasteful number, since it uses less digits than its factorization.

1649135190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390084.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 1649135190 is about 40609.5455527392. The cubic root of 1649135190 is about 1181.4592666397.

It can be divided in two parts, 16491 and 35190, that added together give a triangular number (51681 = T₃₂₁).

The spelling of 1649135190 in words is "one billion, six hundred forty-nine million, one hundred thirty-five thousand, one hundred ninety".