835742490 has 128 divisors (see below), whose sum is σ = 2301696000. Its totient is φ = 192234240.

The previous prime is 835742473. The next prime is 835742497. The reversal of 835742490 is 94247538.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (835742497) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1130541 + ... + 1131279.

It is an arithmetic number, because the mean of its divisors is an integer number (17982000).

Almost surely, 2^835742490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 835742490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1150848000).

835742490 is an abundant number, since it is smaller than the sum of its proper divisors (1465953510).

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

835742490 is a wasteful number, since it uses less digits than its factorization.

835742490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 835742490 is about 28909.2111618425. The cubic root of 835742490 is about 941.9419976818.

The spelling of 835742490 in words is "eight hundred thirty-five million, seven hundred forty-two thousand, four hundred ninety".