1625429349 has 10 divisors (see below), whose sum is σ = 2428110630. Its totient is φ = 1083619512.

The previous prime is 1625429329. The next prime is 1625429353. The reversal of 1625429349 is 9439245261.

1625429349 is a `hidden beast` number, since 1 + 62 + 542 + 9 + 3 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1584597249 + 40832100 = 39807^2 + 6390^2 .

It is not a de Polignac number, because 1625429349 - 2⁸ = 1625429093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625429329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10033434 + ... + 10033595.

It is an arithmetic number, because the mean of its divisors is an integer number (242811063).

Almost surely, 2^1625429349 is an apocalyptic number.

It is an amenable number.

1625429349 is a deficient number, since it is larger than the sum of its proper divisors (802681281).

1625429349 is an equidigital number, since it uses as much as digits as its factorization.

1625429349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20067041 (or 20067032 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 1625429349 is about 40316.6138087017. The cubic root of 1625429349 is about 1175.7708776345.

The spelling of 1625429349 in words is "one billion, six hundred twenty-five million, four hundred twenty-nine thousand, three hundred forty-nine".