38984490 has 96 divisors (see below), whose sum is σ = 107243136. Its totient is φ = 10186560.

The previous prime is 38984483. The next prime is 38984501. The reversal of 38984490 is 9448983.

It is a happy number.

38984490 is a `hidden beast` number, since 3 + 89 + 84 + 490 = 666.

38984490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 148099 + ... + 148361.

It is an arithmetic number, because the mean of its divisors is an integer number (1117116).

Almost surely, 2^38984490 is an apocalyptic number.

38984490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38984490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53621568).

38984490 is an abundant number, since it is smaller than the sum of its proper divisors (68258646).

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

38984490 is a wasteful number, since it uses less digits than its factorization.

38984490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 38984490 is about 6243.7560810781. The cubic root of 38984490 is about 339.0761830505.

The spelling of 38984490 in words is "thirty-eight million, nine hundred eighty-four thousand, four hundred ninety".