3974751838 has 8 divisors (see below), whose sum is σ = 5962561488. Its totient is φ = 1987231344.

The previous prime is 3974751821. The next prime is 3974751839. The reversal of 3974751838 is 8381574793.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3974751839) 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, 33831 + ... + 95362.

It is an arithmetic number, because the mean of its divisors is an integer number (745320186).

Almost surely, 2^3974751838 is an apocalyptic number.

3974751838 is a deficient number, since it is larger than the sum of its proper divisors (1987809650).

3974751838 is a wasteful number, since it uses less digits than its factorization.

3974751838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144578.

The product of its digits is 5080320, while the sum is 55.

The square root of 3974751838 is about 63045.6329811986. The cubic root of 3974751838 is about 1584.0540867559.

The spelling of 3974751838 in words is "three billion, nine hundred seventy-four million, seven hundred fifty-one thousand, eight hundred thirty-eight".