29401999240 has 32 divisors (see below), whose sum is σ = 66167276760. Its totient is φ = 11758528000.

The previous prime is 29401999223. The next prime is 29401999267. The reversal of 29401999240 is 4299910492.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18448702276 + 10953296964 = 135826^2 + 104658^2 .

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, 146940 + ... + 283540.

Almost surely, 2^29401999240 is an apocalyptic number.

29401999240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29401999240 is an abundant number, since it is smaller than the sum of its proper divisors (36765277520).

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

29401999240 is a wasteful number, since it uses less digits than its factorization.

29401999240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141993 (or 141989 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 49.

The spelling of 29401999240 in words is "twenty-nine billion, four hundred one million, nine hundred ninety-nine thousand, two hundred forty".