29942990 has 64 divisors (see below), whose sum is σ = 69078528. Its totient is φ = 9072000.

The previous prime is 29942981. The next prime is 29943019. The reversal of 29942990 is 9924992.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27965 + ... + 29015.

It is an arithmetic number, because the mean of its divisors is an integer number (1079352).

Almost surely, 2^29942990 is an apocalyptic number.

29942990 is an abundant number, since it is smaller than the sum of its proper divisors (39135538).

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

29942990 is a wasteful number, since it uses less digits than its factorization.

29942990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 29942990 is about 5472.0188230670. The cubic root of 29942990 is about 310.5262998685.

It can be divided in two parts, 29 and 942990, that multiplied together give a triangular number (27346710 = T₇₃₉₅).

The spelling of 29942990 in words is "twenty-nine million, nine hundred forty-two thousand, nine hundred ninety".