40298969880 has 512 divisors, whose sum is σ = 154677600000. Its totient is φ = 9244606464.

The previous prime is 40298969873. The next prime is 40298969891. The reversal of 40298969880 is 8896989204.

40298969880 is a `hidden beast` number, since 402 + 98 + 9 + 69 + 8 + 80 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 26015346 + ... + 26016894.

Almost surely, 2^40298969880 is an apocalyptic number.

40298969880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40298969880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77338800000).

40298969880 is an abundant number, since it is smaller than the sum of its proper divisors (114378630120).

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

40298969880 is a wasteful number, since it uses less digits than its factorization.

40298969880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708 (or 1698 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 63.

The spelling of 40298969880 in words is "forty billion, two hundred ninety-eight million, nine hundred sixty-nine thousand, eight hundred eighty".