387443942 has 8 divisors (see below), whose sum is σ = 581253600. Its totient is φ = 193692744.

The previous prime is 387443941. The next prime is 387443963. The reversal of 387443942 is 249344783.

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

It is a super-2 number, since 2×387443942² = 300225616384998728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 387443893 and 387443902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387443941) 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, 10784 + ... + 29852.

It is an arithmetic number, because the mean of its divisors is an integer number (72656700).

Almost surely, 2^387443942 is an apocalyptic number.

387443942 is a deficient number, since it is larger than the sum of its proper divisors (193809658).

387443942 is a wasteful number, since it uses less digits than its factorization.

387443942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29230.

The product of its digits is 580608, while the sum is 44.

The square root of 387443942 is about 19683.5957589054. The cubic root of 387443942 is about 729.0147100222.

The spelling of 387443942 in words is "three hundred eighty-seven million, four hundred forty-three thousand, nine hundred forty-two".