29404445642 has 16 divisors (see below), whose sum is σ = 51817624992. Its totient is φ = 12337529520.

The previous prime is 29404445549. The next prime is 29404445699. The reversal of 29404445642 is 24654440492.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 29404445593 and 29404445602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51406088 + ... + 51406659.

It is an arithmetic number, because the mean of its divisors is an integer number (3238601562).

Almost surely, 2^29404445642 is an apocalyptic number.

29404445642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

29404445642 is a deficient number, since it is larger than the sum of its proper divisors (22413179350).

29404445642 is a wasteful number, since it uses less digits than its factorization.

29404445642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102812773.

The product of its (nonzero) digits is 1105920, while the sum is 44.

The spelling of 29404445642 in words is "twenty-nine billion, four hundred four million, four hundred forty-five thousand, six hundred forty-two".