3938748742 has 8 divisors (see below), whose sum is σ = 6019597296. Its totient is φ = 1932216312.

The previous prime is 3938748731. The next prime is 3938748761. The reversal of 3938748742 is 2478478393.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18578898 + ... + 18579109.

It is an arithmetic number, because the mean of its divisors is an integer number (752449662).

Almost surely, 2^3938748742 is an apocalyptic number.

3938748742 is a deficient number, since it is larger than the sum of its proper divisors (2080848554).

3938748742 is a wasteful number, since it uses less digits than its factorization.

3938748742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37158062.

The product of its digits is 8128512, while the sum is 55.

The square root of 3938748742 is about 62759.4514157031. The cubic root of 3938748742 is about 1579.2568130617.

The spelling of 3938748742 in words is "three billion, nine hundred thirty-eight million, seven hundred forty-eight thousand, seven hundred forty-two".