38102040 has 96 divisors (see below), whose sum is σ = 125096400. Its totient is φ = 10056960.

The previous prime is 38102033. The next prime is 38102041. The reversal of 38102040 is 4020183.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38102041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38755 + ... + 39725.

Almost surely, 2^38102040 is an apocalyptic number.

38102040 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 38102040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62548200).

38102040 is an abundant number, since it is smaller than the sum of its proper divisors (86994360).

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

38102040 is a wasteful number, since it uses less digits than its factorization.

38102040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 38102040 is about 6172.6849911526. The cubic root of 38102040 is about 336.4981980155.

The spelling of 38102040 in words is "thirty-eight million, one hundred two thousand, forty".