836297540 has 192 divisors, whose sum is σ = 2119434240. Its totient is φ = 274337280.

The previous prime is 836297491. The next prime is 836297557. The reversal of 836297540 is 45792638.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 836297491 and 836297500.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6584957 + ... + 6585083.

It is an arithmetic number, because the mean of its divisors is an integer number (11038720).

Almost surely, 2^836297540 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 836297540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1059717120).

836297540 is an abundant number, since it is smaller than the sum of its proper divisors (1283136700).

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

836297540 is a wasteful number, since it uses less digits than its factorization.

836297540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 836297540 is about 28918.8094499065. The cubic root of 836297540 is about 942.1504786481.

The spelling of 836297540 in words is "eight hundred thirty-six million, two hundred ninety-seven thousand, five hundred forty".