20375739 has 16 divisors (see below), whose sum is σ = 30270240. Its totient is φ = 13546080.

The previous prime is 20375699. The next prime is 20375743. The reversal of 20375739 is 93757302.

It is a happy number.

It is not a de Polignac number, because 20375739 - 2⁹ = 20375227 is a prime.

It is a super-2 number, since 2×20375739² = 830341479592242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20375039) 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, 11629 + ... + 13265.

It is an arithmetic number, because the mean of its divisors is an integer number (1891890).

Almost surely, 2^20375739 is an apocalyptic number.

20375739 is a deficient number, since it is larger than the sum of its proper divisors (9894501).

20375739 is a wasteful number, since it uses less digits than its factorization.

20375739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107 (or 2101 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 36.

The square root of 20375739 is about 4513.9493794237. The cubic root of 20375739 is about 273.1310806334.

It can be divided in two parts, 2037 and 5739, that added together give a 5-th power (7776 = 6⁵).

The spelling of 20375739 in words is "twenty million, three hundred seventy-five thousand, seven hundred thirty-nine".