29540001428 has 18 divisors (see below), whose sum is σ = 60135003306. Its totient is φ = 12660000528.

The previous prime is 29540001419. The next prime is 29540001467. The reversal of 29540001428 is 82410004592.

It can be written as a sum of positive squares in only one way, i.e., 25396247044 + 4143754384 = 159362^2 + 64372^2 .

It is a super-2 number, since 2×29540001428² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 75356951 + ... + 75357342.

It is an arithmetic number, because the mean of its divisors is an integer number (3340833517).

Almost surely, 2^29540001428 is an apocalyptic number.

29540001428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

29540001428 is an abundant number, since it is smaller than the sum of its proper divisors (30595001878).

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

29540001428 is a wasteful number, since it uses less digits than its factorization.

29540001428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150714311 (or 150714302 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 29540001428 in words is "twenty-nine billion, five hundred forty million, one thousand, four hundred twenty-eight".