39464820 has 120 divisors (see below), whose sum is σ = 131176584. Its totient is φ = 9897984.

The previous prime is 39464797. The next prime is 39464839. The reversal of 39464820 is 2846493.

It is a happy number.

39464820 is a `hidden beast` number, since 3 + 9 + 4 + 648 + 2 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 14424804 + 25040016 = 3798^2 + 5004^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 26824 + ... + 28256.

Almost surely, 2^39464820 is an apocalyptic number.

39464820 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 39464820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65588292).

39464820 is an abundant number, since it is smaller than the sum of its proper divisors (91711764).

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

39464820 is a wasteful number, since it uses less digits than its factorization.

39464820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471 (or 1460 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 39464820 is about 6282.1031510156. The cubic root of 39464820 is about 340.4630944495.

The spelling of 39464820 in words is "thirty-nine million, four hundred sixty-four thousand, eight hundred twenty".