38402272 has 24 divisors (see below), whose sum is σ = 78893136. Its totient is φ = 18365952.

The previous prime is 38402239. The next prime is 38402279. The reversal of 38402272 is 27220483.

It is a self number, because there is not a number n which added to its sum of digits gives 38402272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38402279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25353 + ... + 26824.

It is an arithmetic number, because the mean of its divisors is an integer number (3287214).

Almost surely, 2^38402272 is an apocalyptic number.

38402272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38402272 is an abundant number, since it is smaller than the sum of its proper divisors (40490864).

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

38402272 is a wasteful number, since it uses less digits than its factorization.

38402272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52210 (or 52202 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 38402272 is about 6196.9566724320. The cubic root of 38402272 is about 337.3797197361.

The spelling of 38402272 in words is "thirty-eight million, four hundred two thousand, two hundred seventy-two".