3742642 has 4 divisors (see below), whose sum is σ = 5613966. Its totient is φ = 1871320.

The previous prime is 3742633. The next prime is 3742649. The reversal of 3742642 is 2462473.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2462473 = 13 ⋅189421.

It can be written as a sum of positive squares in only one way, i.e., 2621161 + 1121481 = 1619^2 + 1059^2 .

It is a d-powerful number, because it can be written as 3¹³ + 7³ + 4³ + 2³ + 6⁶ + 4⁶ + 2²¹ .

It is a self number, because there is not a number n which added to its sum of digits gives 3742642.

It is not an unprimeable number, because it can be changed into a prime (3742649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 935659 + ... + 935662.

Almost surely, 2^3742642 is an apocalyptic number.

3742642 is a deficient number, since it is larger than the sum of its proper divisors (1871324).

3742642 is a wasteful number, since it uses less digits than its factorization.

3742642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871323.

The product of its digits is 8064, while the sum is 28.

The square root of 3742642 is about 1934.5909128289. The cubic root of 3742642 is about 155.2599453576.

The spelling of 3742642 in words is "three million, seven hundred forty-two thousand, six hundred forty-two".