3863940690 has 32 divisors (see below), whose sum is σ = 9425486016. Its totient is φ = 1013492160.

The previous prime is 3863940653. The next prime is 3863940697. The reversal of 3863940690 is 960493683.

3863940690 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3863940690² = 29860075311675352200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3863940697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1053892 + ... + 1057551.

It is an arithmetic number, because the mean of its divisors is an integer number (294546438).

Almost surely, 2^3863940690 is an apocalyptic number.

3863940690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3863940690 is an abundant number, since it is smaller than the sum of its proper divisors (5561545326).

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

3863940690 is a wasteful number, since it uses less digits than its factorization.

3863940690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111514.

The product of its (nonzero) digits is 839808, while the sum is 48.

The square root of 3863940690 is about 62160.6040028570. The cubic root of 3863940690 is about 1569.1946442217.

The spelling of 3863940690 in words is "three billion, eight hundred sixty-three million, nine hundred forty thousand, six hundred ninety".