29900919 has 8 divisors (see below), whose sum is σ = 40521712. Its totient is φ = 19607040.

The previous prime is 29900917. The next prime is 29900939. The reversal of 29900919 is 91900992.

It is a happy number.

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

It is not a de Polignac number, because 29900919 - 2¹ = 29900917 is a prime.

It is a super-2 number, since 2×29900919² = 1788129914089122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29900917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81514 + ... + 81879.

It is an arithmetic number, because the mean of its divisors is an integer number (5065214).

Almost surely, 2^29900919 is an apocalyptic number.

29900919 is a deficient number, since it is larger than the sum of its proper divisors (10620793).

29900919 is a wasteful number, since it uses less digits than its factorization.

29900919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163457.

The product of its (nonzero) digits is 13122, while the sum is 39.

The square root of 29900919 is about 5468.1732781615. The cubic root of 29900919 is about 310.3807980857.

The spelling of 29900919 in words is "twenty-nine million, nine hundred thousand, nine hundred nineteen".