2150355400 has 96 divisors (see below), whose sum is σ = 5294750400. Its totient is φ = 809913600.

The previous prime is 2150355349. The next prime is 2150355409. The reversal of 2150355400 is 45530512.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2150355409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 655765 + ... + 659035.

It is an arithmetic number, because the mean of its divisors is an integer number (55153650).

Almost surely, 2^2150355400 is an apocalyptic number.

2150355400 is a gapful number since it is divisible by the number (20) 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 2150355400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2647375200).

2150355400 is an abundant number, since it is smaller than the sum of its proper divisors (3144395000).

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

2150355400 is a wasteful number, since it uses less digits than its factorization.

2150355400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479 (or 3470 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 2150355400 is about 46371.9246958761. The cubic root of 2150355400 is about 1290.7339932811.

Adding to 2150355400 its reverse (45530512), we get a palindrome (2195885912).

The spelling of 2150355400 in words is "two billion, one hundred fifty million, three hundred fifty-five thousand, four hundred".