29238031020 has 288 divisors, whose sum is σ = 94359605760. Its totient is φ = 6759350400.

The previous prime is 29238031013. The next prime is 29238031051. The reversal of 29238031020 is 2013083292.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 88332255 + ... + 88332585.

It is an arithmetic number, because the mean of its divisors is an integer number (327637520).

Almost surely, 2^29238031020 is an apocalyptic number.

29238031020 is a gapful number since it is divisible by the number (20) 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 29238031020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47179802880).

29238031020 is an abundant number, since it is smaller than the sum of its proper divisors (65121574740).

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

29238031020 is a wasteful number, since it uses less digits than its factorization.

29238031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 29238031020 in words is "twenty-nine billion, two hundred thirty-eight million, thirty-one thousand, twenty".