39454749 has 8 divisors (see below), whose sum is σ = 58451520. Its totient is φ = 26303148.

The previous prime is 39454717. The next prime is 39454763. The reversal of 39454749 is 94745493.

It is a happy number.

It is not a de Polignac number, because 39454749 - 2⁵ = 39454717 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39454769) 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, 730617 + ... + 730670.

It is an arithmetic number, because the mean of its divisors is an integer number (7306440).

Almost surely, 2^39454749 is an apocalyptic number.

It is an amenable number.

39454749 is a deficient number, since it is larger than the sum of its proper divisors (18996771).

39454749 is a wasteful number, since it uses less digits than its factorization.

39454749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461296 (or 1461290 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 39454749 is about 6281.3015371020. The cubic root of 39454749 is about 340.4341311388.

The spelling of 39454749 in words is "thirty-nine million, four hundred fifty-four thousand, seven hundred forty-nine".