29890700 has 36 divisors (see below), whose sum is σ = 74130672. Its totient is φ = 10248000.

The previous prime is 29890691. The next prime is 29890711. The reversal of 29890700 is 709892.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20651 + ... + 22050.

Almost surely, 2^29890700 is an apocalyptic number.

29890700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29890700 is an abundant number, since it is smaller than the sum of its proper divisors (44239972).

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

29890700 is a wasteful number, since it uses less digits than its factorization.

29890700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42722 (or 42715 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 29890700 is about 5467.2387911998. The cubic root of 29890700 is about 310.3454352620.

The spelling of 29890700 in words is "twenty-nine million, eight hundred ninety thousand, seven hundred".