29989800148 has 216 divisors, whose sum is σ = 69698622336. Its totient is φ = 11048400000.

The previous prime is 29989800103. The next prime is 29989800167. The reversal of 29989800148 is 84100898992.

It is a super-2 number, since 2×29989800148² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 29989800092 and 29989800101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 198607873 + ... + 198608023.

Almost surely, 2^29989800148 is an apocalyptic number.

29989800148 is a gapful number since it is divisible by the number (28) 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 29989800148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34849311168).

29989800148 is an abundant number, since it is smaller than the sum of its proper divisors (39708822188).

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

29989800148 is a wasteful number, since it uses less digits than its factorization.

29989800148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 58.

The spelling of 29989800148 in words is "twenty-nine billion, nine hundred eighty-nine million, eight hundred thousand, one hundred forty-eight".