38475780 has 144 divisors (see below), whose sum is σ = 130999680. Its totient is φ = 8397312.

The previous prime is 38475769. The next prime is 38475791. The reversal of 38475780 is 8757483.

It is an interprime number because it is at equal distance from previous prime (38475769) and next prime (38475791).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67336 + ... + 67904.

It is an arithmetic number, because the mean of its divisors is an integer number (909720).

Almost surely, 2^38475780 is an apocalyptic number.

38475780 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 38475780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65499840).

38475780 is an abundant number, since it is smaller than the sum of its proper divisors (92523900).

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

38475780 is a wasteful number, since it uses less digits than its factorization.

38475780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 38475780 is about 6202.8848127303. The cubic root of 38475780 is about 337.5948485134.

The spelling of 38475780 in words is "thirty-eight million, four hundred seventy-five thousand, seven hundred eighty".