39672738 has 48 divisors (see below), whose sum is σ = 98594496. Its totient is φ = 11293920.

The previous prime is 39672719. The next prime is 39672739. The reversal of 39672738 is 83727693.

It is a happy number.

It is a super-2 number, since 2×39672738² = 3147852280833288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39672693 and 39672702.

It is not an unprimeable number, because it can be changed into a prime (39672739) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57745 + ... + 58427.

It is an arithmetic number, because the mean of its divisors is an integer number (2054052).

Almost surely, 2^39672738 is an apocalyptic number.

39672738 is an abundant number, since it is smaller than the sum of its proper divisors (58921758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39672738 is a wasteful number, since it uses less digits than its factorization.

39672738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159 (or 1156 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 39672738 is about 6298.6298510073. The cubic root of 39672738 is about 341.0599505309.

The spelling of 39672738 in words is "thirty-nine million, six hundred seventy-two thousand, seven hundred thirty-eight".