7740142 has 16 divisors (see below), whose sum is σ = 12091392. Its totient is φ = 3711960.

The previous prime is 7740137. The next prime is 7740143. The reversal of 7740142 is 2410477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7740143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7383 + ... + 8365.

It is an arithmetic number, because the mean of its divisors is an integer number (755712).

Almost surely, 2^7740142 is an apocalyptic number.

7740142 is a deficient number, since it is larger than the sum of its proper divisors (4351250).

7740142 is a wasteful number, since it uses less digits than its factorization.

7740142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 7740142 is about 2782.1110689547. Note that the first 3 decimals coincide. The cubic root of 7740142 is about 197.8106375800.

The spelling of 7740142 in words is "seven million, seven hundred forty thousand, one hundred forty-two".