38157458 has 4 divisors (see below), whose sum is σ = 57236190. Its totient is φ = 19078728.

The previous prime is 38157443. The next prime is 38157463. The reversal of 38157458 is 85475183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85475183 = 67 ⋅1275749.

It can be written as a sum of positive squares in only one way, i.e., 38105929 + 51529 = 6173^2 + 227^2 .

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, 9539363 + ... + 9539366.

Almost surely, 2^38157458 is an apocalyptic number.

38157458 is a deficient number, since it is larger than the sum of its proper divisors (19078732).

38157458 is a wasteful number, since it uses less digits than its factorization.

38157458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19078731.

The product of its digits is 134400, while the sum is 41.

The square root of 38157458 is about 6177.1723304438. The cubic root of 38157458 is about 336.6612603561.

The spelling of 38157458 in words is "thirty-eight million, one hundred fifty-seven thousand, four hundred fifty-eight".