365520738 has 64 divisors (see below), whose sum is σ = 835660800. Its totient is φ = 105504960.

The previous prime is 365520731. The next prime is 365520767. The reversal of 365520738 is 837025563.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 365520696 and 365520705.

It is not an unprimeable number, because it can be changed into a prime (365520731) 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, 590193 + ... + 590811.

It is an arithmetic number, because the mean of its divisors is an integer number (13057200).

Almost surely, 2^365520738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 365520738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417830400).

365520738 is an abundant number, since it is smaller than the sum of its proper divisors (470140062).

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

365520738 is a wasteful number, since it uses less digits than its factorization.

365520738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047.

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 365520738 is about 19118.5966535204. The cubic root of 365520738 is about 714.9966505133.

The spelling of 365520738 in words is "three hundred sixty-five million, five hundred twenty thousand, seven hundred thirty-eight".