7449642 has 12 divisors (see below), whose sum is σ = 16140930. Its totient is φ = 2483208.

The previous prime is 7449623. The next prime is 7449643. The reversal of 7449642 is 2469447.

7449642 is a `hidden beast` number, since 7 + 4 + 4 + 9 + 642 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4756761 + 2692881 = 2181^2 + 1641^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 7⁸ + 4³ + 4⁵ + 9 + 6⁸ + 4⁶ + 2⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 7449597 and 7449606.

It is not an unprimeable number, because it can be changed into a prime (7449643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206917 + ... + 206952.

Almost surely, 2^7449642 is an apocalyptic number.

7449642 is an abundant number, since it is smaller than the sum of its proper divisors (8691288).

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

7449642 is a wasteful number, since it uses less digits than its factorization.

7449642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413877 (or 413874 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 7449642 is about 2729.4032314775. The cubic root of 7449642 is about 195.3042980705.

The spelling of 7449642 in words is "seven million, four hundred forty-nine thousand, six hundred forty-two".