57420029 has 16 divisors (see below), whose sum is σ = 64005120. Its totient is φ = 51300480.

The previous prime is 57420017. The next prime is 57420031. The reversal of 57420029 is 92002475.

It is a cyclic number.

It is not a de Polignac number, because 57420029 - 2⁸ = 57419773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57419983 and 57420010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57420079) 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, 19289 + ... + 22065.

It is an arithmetic number, because the mean of its divisors is an integer number (4000320).

Almost surely, 2^57420029 is an apocalyptic number.

It is an amenable number.

57420029 is a deficient number, since it is larger than the sum of its proper divisors (6585091).

57420029 is a wasteful number, since it uses less digits than its factorization.

57420029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 57420029 is about 7577.6004777238. The cubic root of 57420029 is about 385.7931117687.

The spelling of 57420029 in words is "fifty-seven million, four hundred twenty thousand, twenty-nine".