7620442 has 4 divisors (see below), whose sum is σ = 11430666. Its totient is φ = 3810220.

The previous prime is 7620427. The next prime is 7620443. The reversal of 7620442 is 2440267.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7568001 + 52441 = 2751^2 + 229^2 .

It is a super-2 number, since 2×7620442² = 116142272550728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7620443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1905109 + ... + 1905112.

Almost surely, 2^7620442 is an apocalyptic number.

7620442 is a deficient number, since it is larger than the sum of its proper divisors (3810224).

7620442 is a wasteful number, since it uses less digits than its factorization.

7620442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810223.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 7620442 is about 2760.5148070605. The cubic root of 7620442 is about 196.7856326403.

The spelling of 7620442 in words is "seven million, six hundred twenty thousand, four hundred forty-two".