29245243440 has 80 divisors (see below), whose sum is σ = 103611725568. Its totient is φ = 6684626688.

The previous prime is 29245243439. The next prime is 29245243451. The reversal of 29245243440 is 4434254292.

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

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, 8702262 + ... + 8705621.

Almost surely, 2^29245243440 is an apocalyptic number.

29245243440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29245243440 is an abundant number, since it is smaller than the sum of its proper divisors (74366482128).

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

29245243440 is a wasteful number, since it uses less digits than its factorization.

29245243440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17407906 (or 17407900 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 29245243440 in words is "twenty-nine billion, two hundred forty-five million, two hundred forty-three thousand, four hundred forty".