38421723 has 16 divisors (see below), whose sum is σ = 53172000. Its totient is φ = 24648960.

The previous prime is 38421703. The next prime is 38421727. The reversal of 38421723 is 32712483.

It is not a de Polignac number, because 38421723 - 2⁶ = 38421659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38421727) 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, 36103 + ... + 37151.

It is an arithmetic number, because the mean of its divisors is an integer number (3323250).

Almost surely, 2^38421723 is an apocalyptic number.

38421723 is a deficient number, since it is larger than the sum of its proper divisors (14750277).

38421723 is a wasteful number, since it uses less digits than its factorization.

38421723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502.

The product of its digits is 8064, while the sum is 30.

The square root of 38421723 is about 6198.5258731411. The cubic root of 38421723 is about 337.4366717942.

It can be divided in two parts, 3842 and 1723, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 38421723 in words is "thirty-eight million, four hundred twenty-one thousand, seven hundred twenty-three".