39200045 has 16 divisors (see below), whose sum is σ = 50081328. Its totient is φ = 29352960.

The previous prime is 39200041. The next prime is 39200087. The reversal of 39200045 is 54000293.

It can be written as a sum of positive squares in 8 ways, for example, as 8219689 + 30980356 = 2867^2 + 5566^2 .

It is not a de Polignac number, because 39200045 - 2² = 39200041 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39200041) 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, 15575 + ... + 17915.

It is an arithmetic number, because the mean of its divisors is an integer number (3130083).

Almost surely, 2^39200045 is an apocalyptic number.

It is an amenable number.

39200045 is a deficient number, since it is larger than the sum of its proper divisors (10881283).

39200045 is a wasteful number, since it uses less digits than its factorization.

39200045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 39200045 is about 6260.9939306791. The cubic root of 39200045 is about 339.6999804355.

It can be divided in two parts, 392000 and 45, that multiplied together give a square (17640000 = 4200²).

The spelling of 39200045 in words is "thirty-nine million, two hundred thousand, forty-five".