38420919 has 16 divisors (see below), whose sum is σ = 57996000. Its totient is φ = 25129728.

The previous prime is 38420917. The next prime is 38420951. The reversal of 38420919 is 91902483.

It is not a de Polignac number, because 38420919 - 2¹ = 38420917 is a prime.

It is a super-2 number, since 2×38420919² = 2952334033609122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38420917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11994 + ... + 14855.

It is an arithmetic number, because the mean of its divisors is an integer number (3624750).

Almost surely, 2^38420919 is an apocalyptic number.

38420919 is a deficient number, since it is larger than the sum of its proper divisors (19575081).

38420919 is a wasteful number, since it uses less digits than its factorization.

38420919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26911 (or 26905 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 38420919 is about 6198.4610186723. The cubic root of 38420919 is about 337.4343180825.

The spelling of 38420919 in words is "thirty-eight million, four hundred twenty thousand, nine hundred nineteen".