356145240 has 256 divisors, whose sum is σ = 1259712000. Its totient is φ = 79585280.

The previous prime is 356145233. The next prime is 356145269. The reversal of 356145240 is 42541653.

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 = 356145198 and 356145207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1323826 + ... + 1324094.

It is an arithmetic number, because the mean of its divisors is an integer number (4920750).

Almost surely, 2^356145240 is an apocalyptic number.

356145240 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 356145240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (629856000).

356145240 is an abundant number, since it is smaller than the sum of its proper divisors (903566760).

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

356145240 is a wasteful number, since it uses less digits than its factorization.

356145240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 356145240 is about 18871.8107239343. The cubic root of 356145240 is about 708.8304755753.

Adding to 356145240 its reverse (42541653), we get a palindrome (398686893).

The spelling of 356145240 in words is "three hundred fifty-six million, one hundred forty-five thousand, two hundred forty".