38049420 has 24 divisors (see below), whose sum is σ = 106538544. Its totient is φ = 10146496.

The previous prime is 38049413. The next prime is 38049437. The reversal of 38049420 is 2494083.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317019 + ... + 317138.

It is an arithmetic number, because the mean of its divisors is an integer number (4439106).

Almost surely, 2^38049420 is an apocalyptic number.

38049420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38049420 is an abundant number, since it is smaller than the sum of its proper divisors (68489124).

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

38049420 is a wasteful number, since it uses less digits than its factorization.

38049420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634169 (or 634167 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 38049420 is about 6168.4211918448. The cubic root of 38049420 is about 336.3432221269.

The spelling of 38049420 in words is "thirty-eight million, forty-nine thousand, four hundred twenty".