38420641 has 8 divisors (see below), whose sum is σ = 46220480. Its totient is φ = 31198608.

The previous prime is 38420593. The next prime is 38420651. The reversal of 38420641 is 14602483.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38420641 - 2⁷ = 38420513 is a prime.

It is a super-2 number, since 2×38420641² = 2952291309701762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38420651) 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, 144306 + ... + 144571.

It is an arithmetic number, because the mean of its divisors is an integer number (5777560).

Almost surely, 2^38420641 is an apocalyptic number.

It is an amenable number.

38420641 is a deficient number, since it is larger than the sum of its proper divisors (7799839).

38420641 is a wasteful number, since it uses less digits than its factorization.

38420641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288903.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 38420641 is about 6198.4385937105. The cubic root of 38420641 is about 337.4335042292.

It can be divided in two parts, 384 and 20641, that added together give a square (21025 = 145²).

The spelling of 38420641 in words is "thirty-eight million, four hundred twenty thousand, six hundred forty-one".