38426720 has 48 divisors (see below), whose sum is σ = 93251088. Its totient is φ = 14952960.

The previous prime is 38426699. The next prime is 38426723. The reversal of 38426720 is 2762483.

It is a super-2 number, since 2×38426720² = 2953225619916800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38426723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2675 + ... + 9165.

It is an arithmetic number, because the mean of its divisors is an integer number (1942731).

Almost surely, 2^38426720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38426720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46625544).

38426720 is an abundant number, since it is smaller than the sum of its proper divisors (54824368).

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

38426720 is a wasteful number, since it uses less digits than its factorization.

38426720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6543 (or 6535 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 38426720 is about 6198.9289397443. The cubic root of 38426720 is about 337.4512997860.

The spelling of 38426720 in words is "thirty-eight million, four hundred twenty-six thousand, seven hundred twenty".