1964933690 has 16 divisors (see below), whose sum is σ = 3558062592. Its totient is φ = 781266384.

The previous prime is 1964933681. The next prime is 1964933717. The reversal of 1964933690 is 963394691.

It is a super-2 number, since 2×1964933690² = 7721928812194032200, which contains 22 as substring.

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, 586634 + ... + 589973.

It is an arithmetic number, because the mean of its divisors is an integer number (222378912).

Almost surely, 2^1964933690 is an apocalyptic number.

1964933690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1964933690 is a deficient number, since it is larger than the sum of its proper divisors (1593128902).

1964933690 is a wasteful number, since it uses less digits than its factorization.

1964933690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176781.

The product of its (nonzero) digits is 944784, while the sum is 50.

The square root of 1964933690 is about 44327.5725705796. The cubic root of 1964933690 is about 1252.5141271416.

The spelling of 1964933690 in words is "one billion, nine hundred sixty-four million, nine hundred thirty-three thousand, six hundred ninety".