3966962538 has 64 divisors (see below), whose sum is σ = 10412282880. Its totient is φ = 976147200.

The previous prime is 3966962533. The next prime is 3966962539. The reversal of 3966962538 is 8352696693.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (3966962533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217183 + ... + 234738.

It is an arithmetic number, because the mean of its divisors is an integer number (162691920).

Almost surely, 2^3966962538 is an apocalyptic number.

3966962538 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3966962538 is an abundant number, since it is smaller than the sum of its proper divisors (6445320342).

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

3966962538 is a wasteful number, since it uses less digits than its factorization.

3966962538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451963.

The product of its digits is 12597120, while the sum is 57.

The square root of 3966962538 is about 62983.8275908983. The cubic root of 3966962538 is about 1583.0186559670.

The spelling of 3966962538 in words is "three billion, nine hundred sixty-six million, nine hundred sixty-two thousand, five hundred thirty-eight".