7405542 has 24 divisors (see below), whose sum is σ = 16102944. Its totient is φ = 2459664.

The previous prime is 7405537. The next prime is 7405547. The reversal of 7405542 is 2455047.

It is an interprime number because it is at equal distance from previous prime (7405537) and next prime (7405547).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7405547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6163 + ... + 7265.

It is an arithmetic number, because the mean of its divisors is an integer number (670956).

Almost surely, 2^7405542 is an apocalyptic number.

7405542 is an abundant number, since it is smaller than the sum of its proper divisors (8697402).

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

7405542 is a wasteful number, since it uses less digits than its factorization.

7405542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484 (or 1481 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 7405542 is about 2721.3125509577. The cubic root of 7405542 is about 194.9181510540.

The spelling of 7405542 in words is "seven million, four hundred five thousand, five hundred forty-two".