29629226640 has 80 divisors (see below), whose sum is σ = 98916043968. Its totient is φ = 7293347328.

The previous prime is 29629226597. The next prime is 29629226663. The reversal of 29629226640 is 4662292692.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 29629226640.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4745154 + ... + 4751393.

Almost surely, 2^29629226640 is an apocalyptic number.

29629226640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29629226640 is an abundant number, since it is smaller than the sum of its proper divisors (69286817328).

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

29629226640 is a wasteful number, since it uses less digits than its factorization.

29629226640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9496576 (or 9496570 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 48.

The spelling of 29629226640 in words is "twenty-nine billion, six hundred twenty-nine million, two hundred twenty-six thousand, six hundred forty".