38224440 has 64 divisors (see below), whose sum is σ = 127418400. Its totient is φ = 10192896.

The previous prime is 38224429. The next prime is 38224471. The reversal of 38224440 is 4442283.

It is a happy number.

38224440 is a `hidden beast` number, since 382 + 244 + 40 = 666.

It is a super-2 number, since 2×38224440² = 2922215626627200, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 16617 + ... + 18776.

Almost surely, 2^38224440 is an apocalyptic number.

38224440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38224440 is an abundant number, since it is smaller than the sum of its proper divisors (89193960).

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

38224440 is a wasteful number, since it uses less digits than its factorization.

38224440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35413 (or 35403 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 38224440 is about 6182.5916895749. The cubic root of 38224440 is about 336.8581380972.

The spelling of 38224440 in words is "thirty-eight million, two hundred twenty-four thousand, four hundred forty".