3938402 has 8 divisors (see below), whose sum is σ = 6362076. Its totient is φ = 1817712.

The previous prime is 3938393. The next prime is 3938437. The reversal of 3938402 is 2048393.

It can be written as a sum of positive squares in 2 ways, for example, as 3200521 + 737881 = 1789^2 + 859^2 .

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

It is a super-2 number, since 2×3938402² = 31022020627208, which contains 22 as substring.

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, 75713 + ... + 75764.

Almost surely, 2^3938402 is an apocalyptic number.

3938402 is a deficient number, since it is larger than the sum of its proper divisors (2423674).

3938402 is a wasteful number, since it uses less digits than its factorization.

3938402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151492.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 3938402 is about 1984.5407529199. The cubic root of 3938402 is about 157.9210469178.

The spelling of 3938402 in words is "three million, nine hundred thirty-eight thousand, four hundred two".