74405029 has 2 divisors, whose sum is σ = 74405030. Its totient is φ = 74405028.

The previous prime is 74405021. The next prime is 74405047. The reversal of 74405029 is 92050447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68145025 + 6260004 = 8255^2 + 2502^2 .

It is a cyclic number.

It is not a de Polignac number, because 74405029 - 2³ = 74405021 is a prime.

It is a super-2 number, since 2×74405029² = 11072216680981682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74405021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37202514 + 37202515.

It is an arithmetic number, because the mean of its divisors is an integer number (37202515).

Almost surely, 2^74405029 is an apocalyptic number.

It is an amenable number.

74405029 is a deficient number, since it is larger than the sum of its proper divisors (1).

74405029 is an equidigital number, since it uses as much as digits as its factorization.

74405029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 74405029 is about 8625.8349740764. The cubic root of 74405029 is about 420.5982197160.

The spelling of 74405029 in words is "seventy-four million, four hundred five thousand, twenty-nine".