38344440 has 64 divisors (see below), whose sum is σ = 117223200. Its totient is φ = 10030592.

The previous prime is 38344421. The next prime is 38344459. The reversal of 38344440 is 4444383.

It is an interprime number because it is at equal distance from previous prime (38344421) and next prime (38344459).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 38344398 and 38344407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3346 + ... + 9374.

Almost surely, 2^38344440 is an apocalyptic number.

38344440 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 38344440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58611600).

38344440 is an abundant number, since it is smaller than the sum of its proper divisors (78878760).

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

38344440 is a wasteful number, since it uses less digits than its factorization.

38344440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6096 (or 6092 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 38344440 is about 6192.2887529572. The cubic root of 38344440 is about 337.2102753645.

The spelling of 38344440 in words is "thirty-eight million, three hundred forty-four thousand, four hundred forty".