29428923400 has 24 divisors (see below), whose sum is σ = 68422247370. Its totient is φ = 11771569280.

The previous prime is 29428923383. The next prime is 29428923449. The reversal of 29428923400 is 432982492.

It can be written as a sum of positive squares in 3 ways, for example, as 18737776996 + 10691146404 = 136886^2 + 103398^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73572109 + ... + 73572508.

Almost surely, 2^29428923400 is an apocalyptic number.

29428923400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29428923400 is an abundant number, since it is smaller than the sum of its proper divisors (38993323970).

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

29428923400 is a wasteful number, since it uses less digits than its factorization.

29428923400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147144633 (or 147144624 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 29428923400 in words is "twenty-nine billion, four hundred twenty-eight million, nine hundred twenty-three thousand, four hundred".