3961403438 has 8 divisors (see below), whose sum is σ = 5947698288. Its totient is φ = 1978837344.

The previous prime is 3961403437. The next prime is 3961403441. The reversal of 3961403438 is 8343041693.

3961403438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3961403395 and 3961403404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3961403437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 929531 + ... + 933782.

It is an arithmetic number, because the mean of its divisors is an integer number (743462286).

Almost surely, 2^3961403438 is an apocalyptic number.

3961403438 is a deficient number, since it is larger than the sum of its proper divisors (1986294850).

3961403438 is a wasteful number, since it uses less digits than its factorization.

3961403438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864378.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 3961403438 is about 62939.6809493026. The cubic root of 3961403438 is about 1582.2788562816.

The spelling of 3961403438 in words is "three billion, nine hundred sixty-one million, four hundred three thousand, four hundred thirty-eight".