38202840 has 160 divisors (see below), whose sum is σ = 138433680. Its totient is φ = 9393408.

The previous prime is 38202817. The next prime is 38202883. The reversal of 38202840 is 4820283.

38202840 is a `hidden beast` number, since 382 + 0 + 284 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 41667 + ... + 42573.

Almost surely, 2^38202840 is an apocalyptic number.

38202840 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 38202840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69216840).

38202840 is an abundant number, since it is smaller than the sum of its proper divisors (100230840).

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

38202840 is a wasteful number, since it uses less digits than its factorization.

38202840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943 (or 930 counting only the distinct ones).

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

The square root of 38202840 is about 6180.8446024795. The cubic root of 38202840 is about 336.7946751509.

The spelling of 38202840 in words is "thirty-eight million, two hundred two thousand, eight hundred forty".