39628380 has 96 divisors (see below), whose sum is σ = 122492160. Its totient is φ = 9492480.

The previous prime is 39628373. The next prime is 39628387. The reversal of 39628380 is 8382693.

It is an interprime number because it is at equal distance from previous prime (39628373) and next prime (39628387).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39628387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63711 + ... + 64329.

It is an arithmetic number, because the mean of its divisors is an integer number (1275960).

Almost surely, 2^39628380 is an apocalyptic number.

39628380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39628380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61246080).

39628380 is an abundant number, since it is smaller than the sum of its proper divisors (82863780).

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

39628380 is a wasteful number, since it uses less digits than its factorization.

39628380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 39628380 is about 6295.1076241793. The cubic root of 39628380 is about 340.9327903363.

The spelling of 39628380 in words is "thirty-nine million, six hundred twenty-eight thousand, three hundred eighty".