20249354070 has 192 divisors, whose sum is σ = 60128759808. Its totient is φ = 4683168000.

The previous prime is 20249354033. The next prime is 20249354093. The reversal of 20249354070 is 7045394202.

20249354070 is a `hidden beast` number, since 2 + 0 + 2 + 49 + 3 + 540 + 70 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2174344 + ... + 2183636.

It is an arithmetic number, because the mean of its divisors is an integer number (313170624).

Almost surely, 2^20249354070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20249354070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30064379904).

20249354070 is an abundant number, since it is smaller than the sum of its proper divisors (39879405738).

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

20249354070 is a wasteful number, since it uses less digits than its factorization.

20249354070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9419 (or 9416 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 20249354070 in words is "twenty billion, two hundred forty-nine million, three hundred fifty-four thousand, seventy".