38421434 has 4 divisors (see below), whose sum is σ = 57632154. Its totient is φ = 19210716.

The previous prime is 38421373. The next prime is 38421443. The reversal of 38421434 is 43412483.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26553409 + 11868025 = 5153^2 + 3445^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38421397 and 38421406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9605357 + ... + 9605360.

Almost surely, 2^38421434 is an apocalyptic number.

38421434 is a deficient number, since it is larger than the sum of its proper divisors (19210720).

38421434 is a wasteful number, since it uses less digits than its factorization.

38421434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19210719.

The product of its digits is 9216, while the sum is 29.

The square root of 38421434 is about 6198.5025611030. The cubic root of 38421434 is about 337.4358257498.

The spelling of 38421434 in words is "thirty-eight million, four hundred twenty-one thousand, four hundred thirty-four".