29914640 has 40 divisors (see below), whose sum is σ = 79488960. Its totient is φ = 10256256.

The previous prime is 29914639. The next prime is 29914663. The reversal of 29914640 is 4641992.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is a self number, because there is not a number n which added to its sum of digits gives 29914640.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26150 + ... + 27269.

It is an arithmetic number, because the mean of its divisors is an integer number (1987224).

Almost surely, 2^29914640 is an apocalyptic number.

29914640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29914640 is an abundant number, since it is smaller than the sum of its proper divisors (49574320).

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

29914640 is a wasteful number, since it uses less digits than its factorization.

29914640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53439 (or 53433 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 29914640 is about 5469.4277580017. The cubic root of 29914640 is about 310.4282669018.

The spelling of 29914640 in words is "twenty-nine million, nine hundred fourteen thousand, six hundred forty".