1649136190 has 16 divisors (see below), whose sum is σ = 3196787328. Its totient is φ = 608911776.

The previous prime is 1649136173. The next prime is 1649136197. The reversal of 1649136190 is 916319461.

It is a happy number.

It is a super-2 number, since 2×1649136190² = 5439300346335432200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1649136197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6342702 + ... + 6342961.

It is an arithmetic number, because the mean of its divisors is an integer number (199799208).

Almost surely, 2^1649136190 is an apocalyptic number.

1649136190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1649136190 is a deficient number, since it is larger than the sum of its proper divisors (1547651138).

1649136190 is a wasteful number, since it uses less digits than its factorization.

1649136190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12685683.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 1649136190 is about 40609.5578651135. The cubic root of 1649136190 is about 1181.4595054434.

The spelling of 1649136190 in words is "one billion, six hundred forty-nine million, one hundred thirty-six thousand, one hundred ninety".