399802796250 has 320 divisors, whose sum is σ = 1187201473920. Its totient is φ = 88450560000.

The previous prime is 399802796213. The next prime is 399802796287. The reversal of 399802796250 is 52697208993.

It is an interprime number because it is at equal distance from previous prime (399802796213) and next prime (399802796287).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 47722062 + ... + 47730438.

It is an arithmetic number, because the mean of its divisors is an integer number (3710004606).

Almost surely, 2^399802796250 is an apocalyptic number.

399802796250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 399802796250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (593600736960).

399802796250 is an abundant number, since it is smaller than the sum of its proper divisors (787398677670).

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

399802796250 is a wasteful number, since it uses less digits than its factorization.

399802796250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8515 (or 8500 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 60.

The spelling of 399802796250 in words is "three hundred ninety-nine billion, eight hundred two million, seven hundred ninety-six thousand, two hundred fifty".