57940429 has 2 divisors, whose sum is σ = 57940430. Its totient is φ = 57940428.

The previous prime is 57940357. The next prime is 57940459. The reversal of 57940429 is 92404975.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39664804 + 18275625 = 6298^2 + 4275^2 .

It is a cyclic number.

It is not a de Polignac number, because 57940429 - 2¹⁹ = 57416141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57940391 and 57940400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57940459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28970214 + 28970215.

It is an arithmetic number, because the mean of its divisors is an integer number (28970215).

Almost surely, 2^57940429 is an apocalyptic number.

It is an amenable number.

57940429 is a deficient number, since it is larger than the sum of its proper divisors (1).

57940429 is an equidigital number, since it uses as much as digits as its factorization.

57940429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 57940429 is about 7611.8610733512. The cubic root of 57940429 is about 386.9550945321.

The spelling of 57940429 in words is "fifty-seven million, nine hundred forty thousand, four hundred twenty-nine".