29739890900 has 18 divisors (see below), whose sum is σ = 64535563470. Its totient is φ = 11895956320.

The previous prime is 29739890897. The next prime is 29739890909. The reversal of 29739890900 is 909893792.

It can be written as a sum of positive squares in 3 ways, for example, as 47087044 + 29692803856 = 6862^2 + 172316^2 .

It is a super-2 number, since 2×29739890900² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29739890909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 148699355 + ... + 148699554.

Almost surely, 2^29739890900 is an apocalyptic number.

29739890900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29739890900 is an abundant number, since it is smaller than the sum of its proper divisors (34795672570).

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

29739890900 is a wasteful number, since it uses less digits than its factorization.

29739890900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297398923 (or 297398916 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 56.

The spelling of 29739890900 in words is "twenty-nine billion, seven hundred thirty-nine million, eight hundred ninety thousand, nine hundred".