39900249146 has 8 divisors (see below), whose sum is σ = 59861160660. Its totient is φ = 19946528928.

The previous prime is 39900249121. The next prime is 39900249149. The reversal of 39900249146 is 64194200993.

It can be written as a sum of positive squares in 2 ways, for example, as 28539034225 + 11361214921 = 168935^2 + 106589^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-5 number, since 5×39900249146⁵ (a number of 54 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39900249146.

It is not an unprimeable number, because it can be changed into a prime (39900249149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1783931 + ... + 1806158.

Almost surely, 2^39900249146 is an apocalyptic number.

39900249146 is a deficient number, since it is larger than the sum of its proper divisors (19960911514).

39900249146 is a wasteful number, since it uses less digits than its factorization.

39900249146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3595648.

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 39900249146 in words is "thirty-nine billion, nine hundred million, two hundred forty-nine thousand, one hundred forty-six".