2150388 has 30 divisors (see below), whose sum is σ = 5622386. Its totient is φ = 716688.

The previous prime is 2150383. The next prime is 2150399. The reversal of 2150388 is 8830512.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1205604 + 944784 = 1098^2 + 972^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150383) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2995 + ... + 3642.

2^2150388 is an apocalyptic number.

It is an amenable number.

2150388 is an abundant number, since it is smaller than the sum of its proper divisors (3471998).

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

2150388 is a wasteful number, since it uses less digits than its factorization.

2150388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6653 (or 6642 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 2150388 is about 1466.4201307947. The cubic root of 2150388 is about 129.0740515880.

The spelling of 2150388 in words is "two million, one hundred fifty thousand, three hundred eighty-eight".