365221740 has 96 divisors (see below), whose sum is σ = 1115412480. Its totient is φ = 88747776.

The previous prime is 365221739. The next prime is 365221771. The reversal of 365221740 is 47122563.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 365221698 and 365221707.

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, 58657 + ... + 64583.

It is an arithmetic number, because the mean of its divisors is an integer number (11618880).

Almost surely, 2^365221740 is an apocalyptic number.

365221740 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 365221740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557706240).

365221740 is an abundant number, since it is smaller than the sum of its proper divisors (750190740).

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

365221740 is a wasteful number, since it uses less digits than its factorization.

365221740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6031 (or 6029 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 365221740 is about 19110.7754944691. The cubic root of 365221740 is about 714.8016402493.

The spelling of 365221740 in words is "three hundred sixty-five million, two hundred twenty-one thousand, seven hundred forty".