38420280 has 192 divisors, whose sum is σ = 135626400. Its totient is φ = 9400320.

The previous prime is 38420267. The next prime is 38420293. The reversal of 38420280 is 8202483.

38420280 is a `hidden beast` number, since 384 + 2 + 0 + 280 = 666.

38420280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (38420267) and next prime (38420293).

It is a super-2 number, since 2×38420280² = 2952235830556800, which contains 22 as substring.

It is a congruent number.

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, 280372 + ... + 280508.

Almost surely, 2^38420280 is an apocalyptic number.

38420280 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 38420280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67813200).

38420280 is an abundant number, since it is smaller than the sum of its proper divisors (97206120).

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

38420280 is a wasteful number, since it uses less digits than its factorization.

38420280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 38420280 is about 6198.4094734053. The cubic root of 38420280 is about 337.4324473852.

The spelling of 38420280 in words is "thirty-eight million, four hundred twenty thousand, two hundred eighty".