851242496 has 80 divisors (see below), whose sum is σ = 1939657104. Its totient is φ = 369721344.

The previous prime is 851242471. The next prime is 851242507. The reversal of 851242496 is 694242158.

It is a super-2 number, since 2×851242496² = 1449227573992620032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109391 + ... + 116913.

Almost surely, 2^851242496 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 851242496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (969828552).

851242496 is an abundant number, since it is smaller than the sum of its proper divisors (1088414608).

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

851242496 is a wasteful number, since it uses less digits than its factorization.

851242496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7571 (or 7555 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 851242496 is about 29176.0603234912. The cubic root of 851242496 is about 947.7295720780.

The spelling of 851242496 in words is "eight hundred fifty-one million, two hundred forty-two thousand, four hundred ninety-six".