3742739 has 16 divisors (see below), whose sum is σ = 5026560. Its totient is φ = 2691360.

The previous prime is 3742729. The next prime is 3742741. The reversal of 3742739 is 9372473.

It is a de Polignac number, because none of the positive numbers 2^k-3742739 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 3742699 and 3742708.

It is not an unprimeable number, because it can be changed into a prime (3742709) 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, 869 + ... + 2870.

It is an arithmetic number, because the mean of its divisors is an integer number (314160).

Almost surely, 2^3742739 is an apocalyptic number.

3742739 is a deficient number, since it is larger than the sum of its proper divisors (1283821).

3742739 is a wasteful number, since it uses less digits than its factorization.

3742739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770.

The product of its digits is 31752, while the sum is 35.

The square root of 3742739 is about 1934.6159825660. The cubic root of 3742739 is about 155.2612866636.

It can be divided in two parts, 374 and 2739, that added together give a palindrome (3113).

The spelling of 3742739 in words is "three million, seven hundred forty-two thousand, seven hundred thirty-nine".