38771421 has 16 divisors (see below), whose sum is σ = 57469440. Its totient is φ = 23088960.

The previous prime is 38771401. The next prime is 38771429. The reversal of 38771421 is 12417783.

It is a happy number.

It is not a de Polignac number, because 38771421 - 2⁵ = 38771389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38771429) 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, 14826 + ... + 17243.

It is an arithmetic number, because the mean of its divisors is an integer number (3591840).

Almost surely, 2^38771421 is an apocalyptic number.

38771421 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

38771421 is a deficient number, since it is larger than the sum of its proper divisors (18698019).

38771421 is a wasteful number, since it uses less digits than its factorization.

38771421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32116.

The product of its digits is 9408, while the sum is 33.

The square root of 38771421 is about 6226.6701374009. The cubic root of 38771421 is about 338.4573160326.

The spelling of 38771421 in words is "thirty-eight million, seven hundred seventy-one thousand, four hundred twenty-one".