29628440 has 16 divisors (see below), whose sum is σ = 66664080. Its totient is φ = 11851360.

The previous prime is 29628421. The next prime is 29628457. The reversal of 29628440 is 4482692.

It is a self number, because there is not a number n which added to its sum of digits gives 29628440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370316 + ... + 370395.

It is an arithmetic number, because the mean of its divisors is an integer number (4166505).

Almost surely, 2^29628440 is an apocalyptic number.

29628440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29628440 is an abundant number, since it is smaller than the sum of its proper divisors (37035640).

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

29628440 is a wasteful number, since it uses less digits than its factorization.

29628440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740722 (or 740718 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 29628440 is about 5443.2012639622. The cubic root of 29628440 is about 309.4351141901.

The spelling of 29628440 in words is "twenty-nine million, six hundred twenty-eight thousand, four hundred forty".