38479945 has 12 divisors (see below), whose sum is σ = 53715204. Its totient is φ = 26386080.

The previous prime is 38479939. The next prime is 38479949. The reversal of 38479945 is 54997483.

It can be written as a sum of positive squares in 2 ways, for example, as 22391824 + 16088121 = 4732^2 + 4011^2 .

It is not a de Polignac number, because 38479945 - 2³ = 38479937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38479949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78286 + ... + 78775.

It is an arithmetic number, because the mean of its divisors is an integer number (4476267).

Almost surely, 2^38479945 is an apocalyptic number.

38479945 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38479945 is a deficient number, since it is larger than the sum of its proper divisors (15235259).

38479945 is a wasteful number, since it uses less digits than its factorization.

38479945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157080 (or 157073 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 49.

The square root of 38479945 is about 6203.2205345288. The cubic root of 38479945 is about 337.6070296121.

The spelling of 38479945 in words is "thirty-eight million, four hundred seventy-nine thousand, nine hundred forty-five".