2043537390 has 64 divisors (see below), whose sum is σ = 5480006400. Its totient is φ = 541886112.

The previous prime is 2043537389. The next prime is 2043537401. The reversal of 2043537390 is 937353402.

2043537390 is a `hidden beast` number, since 204 + 35 + 37 + 390 = 666.

It is a congruent number.

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, 27189 + ... + 69471.

It is an arithmetic number, because the mean of its divisors is an integer number (85625100).

Almost surely, 2^2043537390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2043537390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2740003200).

2043537390 is an abundant number, since it is smaller than the sum of its proper divisors (3436469010).

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

2043537390 is a wasteful number, since it uses less digits than its factorization.

2043537390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42478 (or 42472 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 36.

The square root of 2043537390 is about 45205.5017669310. The cubic root of 2043537390 is about 1268.9977812390.

The spelling of 2043537390 in words is "two billion, forty-three million, five hundred thirty-seven thousand, three hundred ninety".