42400742 has 32 divisors (see below), whose sum is σ = 70178400. Its totient is φ = 19139328.

The previous prime is 42400741. The next prime is 42400793. The reversal of 42400742 is 24700424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42400741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74234 + ... + 74802.

It is an arithmetic number, because the mean of its divisors is an integer number (2193075).

Almost surely, 2^42400742 is an apocalyptic number.

42400742 is a deficient number, since it is larger than the sum of its proper divisors (27777658).

42400742 is a wasteful number, since it uses less digits than its factorization.

42400742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680.

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 42400742 is about 6511.5852140627. The cubic root of 42400742 is about 348.7047143401.

The spelling of 42400742 in words is "forty-two million, four hundred thousand, seven hundred forty-two".