38491142 has 4 divisors (see below), whose sum is σ = 57736716. Its totient is φ = 19245570.

The previous prime is 38491139. The next prime is 38491151. The reversal of 38491142 is 24119483.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24119483 = 563 ⋅42841.

It is a junction number, because it is equal to n+sod(n) for n = 38491099 and 38491108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9622784 + ... + 9622787.

It is an arithmetic number, because the mean of its divisors is an integer number (14434179).

Almost surely, 2^38491142 is an apocalyptic number.

38491142 is a deficient number, since it is larger than the sum of its proper divisors (19245574).

38491142 is a wasteful number, since it uses less digits than its factorization.

38491142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19245573.

The product of its digits is 6912, while the sum is 32.

The square root of 38491142 is about 6204.1229839519. The cubic root of 38491142 is about 337.6397723764.

The spelling of 38491142 in words is "thirty-eight million, four hundred ninety-one thousand, one hundred forty-two".