38478942 has 16 divisors (see below), whose sum is σ = 85508880. Its totient is φ = 12826296.

The previous prime is 38478929. The next prime is 38478949. The reversal of 38478942 is 24987483.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38478949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356233 + ... + 356340.

It is an arithmetic number, because the mean of its divisors is an integer number (5344305).

Almost surely, 2^38478942 is an apocalyptic number.

38478942 is an abundant number, since it is smaller than the sum of its proper divisors (47029938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38478942 is a wasteful number, since it uses less digits than its factorization.

38478942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712584 (or 712578 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 38478942 is about 6203.1396888995. The cubic root of 38478942 is about 337.6040962850.

The spelling of 38478942 in words is "thirty-eight million, four hundred seventy-eight thousand, nine hundred forty-two".