29942155490 has 32 divisors (see below), whose sum is σ = 59136857136. Its totient is φ = 10846967040.

The previous prime is 29942155487. The next prime is 29942155511. The reversal of 29942155490 is 9455124992.

It can be written as a sum of positive squares in 8 ways, for example, as 13130180569 + 16811974921 = 114587^2 + 129661^2 .

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, 2165981 + ... + 2179760.

Almost surely, 2^29942155490 is an apocalyptic number.

29942155490 is a deficient number, since it is larger than the sum of its proper divisors (29194701646).

29942155490 is a wasteful number, since it uses less digits than its factorization.

29942155490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4345814.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 29942155490 in words is "twenty-nine billion, nine hundred forty-two million, one hundred fifty-five thousand, four hundred ninety".