38421933 has 32 divisors (see below), whose sum is σ = 59304960. Its totient is φ = 21882240.

The previous prime is 38421931. The next prime is 38421941. The reversal of 38421933 is 33912483.

It is a happy number.

It is not a de Polignac number, because 38421933 - 2¹ = 38421931 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 38421894 and 38421903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38421931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145960 + ... + 146222.

It is an arithmetic number, because the mean of its divisors is an integer number (1853280).

Almost surely, 2^38421933 is an apocalyptic number.

38421933 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

38421933 is a deficient number, since it is larger than the sum of its proper divisors (20883027).

38421933 is a wasteful number, since it uses less digits than its factorization.

38421933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529.

The product of its digits is 15552, while the sum is 33.

The square root of 38421933 is about 6198.5428126294. The cubic root of 38421933 is about 337.4372865642.

It can be divided in two parts, 3842 and 1933, that added together give a palindrome (5775).

The spelling of 38421933 in words is "thirty-eight million, four hundred twenty-one thousand, nine hundred thirty-three".