39077442 has 24 divisors (see below), whose sum is σ = 87588540. Its totient is φ = 12576480.

The previous prime is 39077399. The next prime is 39077443. The reversal of 39077442 is 24477093.

It can be written as a sum of positive squares in 2 ways, for example, as 37197801 + 1879641 = 6099^2 + 1371^2 .

It is a junction number, because it is equal to n+sod(n) for n = 39077397 and 39077406.

It is not an unprimeable number, because it can be changed into a prime (39077443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36909 + ... + 37952.

Almost surely, 2^39077442 is an apocalyptic number.

39077442 is an abundant number, since it is smaller than the sum of its proper divisors (48511098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39077442 is a wasteful number, since it uses less digits than its factorization.

39077442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74898 (or 74895 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 39077442 is about 6251.1952457110. The cubic root of 39077442 is about 339.3454593092.

The spelling of 39077442 in words is "thirty-nine million, seventy-seven thousand, four hundred forty-two".