38423428 has 24 divisors (see below), whose sum is σ = 68612544. Its totient is φ = 18823200.

The previous prime is 38423423. The next prime is 38423449. The reversal of 38423428 is 82432483.

It is a junction number, because it is equal to n+sod(n) for n = 38423393 and 38423402.

It is not an unprimeable number, because it can be changed into a prime (38423423) 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, 83118 + ... + 83578.

It is an arithmetic number, because the mean of its divisors is an integer number (2858856).

Almost surely, 2^38423428 is an apocalyptic number.

It is an amenable number.

38423428 is a deficient number, since it is larger than the sum of its proper divisors (30189116).

38423428 is a wasteful number, since it uses less digits than its factorization.

38423428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843 (or 841 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

The square root of 38423428 is about 6198.6634043155. The cubic root of 38423428 is about 337.4416630766.

The spelling of 38423428 in words is "thirty-eight million, four hundred twenty-three thousand, four hundred twenty-eight".