29994840 has 64 divisors (see below), whose sum is σ = 99986400. Its totient is φ = 7998336.

The previous prime is 29994823. The next prime is 29994841. The reversal of 29994840 is 4849992.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29994841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12807 + ... + 14966.

Almost surely, 2^29994840 is an apocalyptic number.

29994840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29994840 is an abundant number, since it is smaller than the sum of its proper divisors (69991560).

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

29994840 is a wasteful number, since it uses less digits than its factorization.

29994840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27793 (or 27783 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 29994840 is about 5476.7545133957. The cubic root of 29994840 is about 310.7054347742.

The spelling of 29994840 in words is "twenty-nine million, nine hundred ninety-four thousand, eight hundred forty".