29902940 has 24 divisors (see below), whose sum is σ = 64329552. Its totient is φ = 11669120.

The previous prime is 29902933. The next prime is 29902997. The reversal of 29902940 is 4920992.

It is a self number, because there is not a number n which added to its sum of digits gives 29902940.

It is a congruent number.

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, 17414 + ... + 19053.

It is an arithmetic number, because the mean of its divisors is an integer number (2680398).

Almost surely, 2^29902940 is an apocalyptic number.

29902940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29902940 is an abundant number, since it is smaller than the sum of its proper divisors (34426612).

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

29902940 is a wasteful number, since it uses less digits than its factorization.

29902940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36517 (or 36515 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 29902940 is about 5468.3580716701. The cubic root of 29902940 is about 310.3877907967.

The spelling of 29902940 in words is "twenty-nine million, nine hundred two thousand, nine hundred forty".