7399642 has 8 divisors (see below), whose sum is σ = 11161332. Its totient is φ = 3679200.

The previous prime is 7399631. The next prime is 7399643. The reversal of 7399642 is 2469937.

It can be written as a sum of positive squares in 2 ways, for example, as 7230721 + 168921 = 2689^2 + 411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 7399595 and 7399604.

It is not an unprimeable number, because it can be changed into a prime (7399643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9859 + ... + 10582.

Almost surely, 2^7399642 is an apocalyptic number.

7399642 is a deficient number, since it is larger than the sum of its proper divisors (3761690).

7399642 is a wasteful number, since it uses less digits than its factorization.

7399642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20624.

The product of its digits is 81648, while the sum is 40.

The square root of 7399642 is about 2720.2282992425. The cubic root of 7399642 is about 194.8663734964.

The spelling of 7399642 in words is "seven million, three hundred ninety-nine thousand, six hundred forty-two".