39970318 has 8 divisors (see below), whose sum is σ = 59987880. Its totient is φ = 19974360.

The previous prime is 39970309. The next prime is 39970331. The reversal of 39970318 is 81307993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×39970318² = 3195252642042248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528 + ... + 8956.

It is an arithmetic number, because the mean of its divisors is an integer number (7498485).

Almost surely, 2^39970318 is an apocalyptic number.

39970318 is a deficient number, since it is larger than the sum of its proper divisors (20017562).

39970318 is a wasteful number, since it uses less digits than its factorization.

39970318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10802.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 39970318 is about 6322.2083167197. The cubic root of 39970318 is about 341.9105758927.

The spelling of 39970318 in words is "thirty-nine million, nine hundred seventy thousand, three hundred eighteen".