29901428 has 6 divisors (see below), whose sum is σ = 52327506. Its totient is φ = 14950712.

The previous prime is 29901397. The next prime is 29901451. The reversal of 29901428 is 82410992.

It can be written as a sum of positive squares in only one way, i.e., 29463184 + 438244 = 5428^2 + 662^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3737675 + ... + 3737682.

It is an arithmetic number, because the mean of its divisors is an integer number (8721251).

Almost surely, 2^29901428 is an apocalyptic number.

It is an amenable number.

29901428 is a deficient number, since it is larger than the sum of its proper divisors (22426078).

29901428 is a wasteful number, since it uses less digits than its factorization.

29901428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7475361 (or 7475359 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 29901428 is about 5468.2198200146. The cubic root of 29901428 is about 310.3825592682.

The spelling of 29901428 in words is "twenty-nine million, nine hundred one thousand, four hundred twenty-eight".