39315390 has 64 divisors (see below), whose sum is σ = 100859904. Its totient is φ = 9773568.

The previous prime is 39315379. The next prime is 39315401. The reversal of 39315390 is 9351393.

It is an interprime number because it is at equal distance from previous prime (39315379) and next prime (39315401).

It is a zygodrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64467 + ... + 65073.

It is an arithmetic number, because the mean of its divisors is an integer number (1575936).

Almost surely, 2^39315390 is an apocalyptic number.

39315390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 39315390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50429952).

39315390 is an abundant number, since it is smaller than the sum of its proper divisors (61544514).

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

39315390 is a wasteful number, since it uses less digits than its factorization.

39315390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761.

The product of its (nonzero) digits is 10935, while the sum is 33.

The square root of 39315390 is about 6270.1985614492. The cubic root of 39315390 is about 340.0328399652.

The spelling of 39315390 in words is "thirty-nine million, three hundred fifteen thousand, three hundred ninety".