356121040 has 80 divisors (see below), whose sum is σ = 913602240. Its totient is φ = 128015360.

The previous prime is 356121001. The next prime is 356121097. The reversal of 356121040 is 40121653.

356121040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76047 + ... + 80593.

It is an arithmetic number, because the mean of its divisors is an integer number (11420028).

Almost surely, 2^356121040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 356121040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456801120).

356121040 is an abundant number, since it is smaller than the sum of its proper divisors (557481200).

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

356121040 is a wasteful number, since it uses less digits than its factorization.

356121040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4660 (or 4654 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 356121040 is about 18871.1695451024. The cubic root of 356121040 is about 708.8144202472.

Adding to 356121040 its reverse (40121653), we get a palindrome (396242693).

The spelling of 356121040 in words is "three hundred fifty-six million, one hundred twenty-one thousand, forty".