38225916 has 18 divisors (see below), whose sum is σ = 96626712. Its totient is φ = 12741960.

The previous prime is 38225909. The next prime is 38225917. The reversal of 38225916 is 61952283.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×38225916² = 2922441308078112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1061831 = 38225916 / (3 + 8 + 2 + 2 + 5 + 9 + 1 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38225917) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 530880 + ... + 530951.

Almost surely, 2^38225916 is an apocalyptic number.

38225916 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

38225916 is an abundant number, since it is smaller than the sum of its proper divisors (58400796).

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

38225916 is a wasteful number, since it uses less digits than its factorization.

38225916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061841 (or 1061836 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 38225916 is about 6182.7110558395. The cubic root of 38225916 is about 336.8624738591.

The spelling of 38225916 in words is "thirty-eight million, two hundred twenty-five thousand, nine hundred sixteen".