42689228400 has 720 divisors, whose sum is σ = 183353264640. Its totient is φ = 8956569600.

The previous prime is 42689228371. The next prime is 42689228419. The reversal of 42689228400 is 482298624.

It is a tau number, because it is divible by the number of its divisors (720).

It is a super-3 number, since 3×42689228400³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 101883391 + ... + 101883809.

It is an arithmetic number, because the mean of its divisors is an integer number (254657312).

Almost surely, 2^42689228400 is an apocalyptic number.

42689228400 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 42689228400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91676632320).

42689228400 is an abundant number, since it is smaller than the sum of its proper divisors (140664036240).

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

42689228400 is a wasteful number, since it uses less digits than its factorization.

42689228400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 42689228400 in words is "forty-two billion, six hundred eighty-nine million, two hundred twenty-eight thousand, four hundred".