39121946 has 16 divisors (see below), whose sum is σ = 59556168. Its totient is φ = 19272000.

The previous prime is 39121933. The next prime is 39121949. The reversal of 39121946 is 64912193.

It can be written as a sum of positive squares in 4 ways, for example, as 34939921 + 4182025 = 5911^2 + 2045^2 .

It is not an unprimeable number, because it can be changed into a prime (39121949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58856 + ... + 59516.

Almost surely, 2^39121946 is an apocalyptic number.

39121946 is a deficient number, since it is larger than the sum of its proper divisors (20434222).

39121946 is a wasteful number, since it uses less digits than its factorization.

39121946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057.

The product of its digits is 11664, while the sum is 35.

The square root of 39121946 is about 6254.7538720560. The cubic root of 39121946 is about 339.4742335246.

The spelling of 39121946 in words is "thirty-nine million, one hundred twenty-one thousand, nine hundred forty-six".