38429242 has 4 divisors (see below), whose sum is σ = 57643866. Its totient is φ = 19214620.

The previous prime is 38429239. The next prime is 38429269. The reversal of 38429242 is 24292483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24292483 = 59 ⋅411737.

It can be written as a sum of positive squares in only one way, i.e., 37834801 + 594441 = 6151^2 + 771^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38429198 and 38429207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9607309 + ... + 9607312.

Almost surely, 2^38429242 is an apocalyptic number.

38429242 is a deficient number, since it is larger than the sum of its proper divisors (19214624).

38429242 is a wasteful number, since it uses less digits than its factorization.

38429242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19214623.

The product of its digits is 27648, while the sum is 34.

The square root of 38429242 is about 6199.1323586450. The cubic root of 38429242 is about 337.4586820933.

The spelling of 38429242 in words is "thirty-eight million, four hundred twenty-nine thousand, two hundred forty-two".