29131642 has 8 divisors (see below), whose sum is σ = 46267956. Its totient is φ = 13708992.

The previous prime is 29131637. The next prime is 29131651. The reversal of 29131642 is 24613192.

It can be written as a sum of positive squares in 2 ways, for example, as 28611801 + 519841 = 5349^2 + 721^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 29131642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428373 + ... + 428440.

Almost surely, 2^29131642 is an apocalyptic number.

29131642 is a deficient number, since it is larger than the sum of its proper divisors (17136314).

29131642 is a wasteful number, since it uses less digits than its factorization.

29131642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856832.

The product of its digits is 2592, while the sum is 28.

The square root of 29131642 is about 5397.3736205677. The cubic root of 29131642 is about 307.6958612955.

The spelling of 29131642 in words is "twenty-nine million, one hundred thirty-one thousand, six hundred forty-two".