38739480 has 128 divisors (see below), whose sum is σ = 131846400. Its totient is φ = 9027072.

The previous prime is 38739479. The next prime is 38739487. The reversal of 38739480 is 8493783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38739487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28987 + ... + 30293.

It is an arithmetic number, because the mean of its divisors is an integer number (1030050).

Almost surely, 2^38739480 is an apocalyptic number.

38739480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38739480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65923200).

38739480 is an abundant number, since it is smaller than the sum of its proper divisors (93106920).

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

38739480 is a wasteful number, since it uses less digits than its factorization.

38739480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353 (or 1349 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 38739480 is about 6224.1047549025. The cubic root of 38739480 is about 338.3643469080.

The spelling of 38739480 in words is "thirty-eight million, seven hundred thirty-nine thousand, four hundred eighty".