742645078 has 16 divisors (see below), whose sum is σ = 1299088800. Its totient is φ = 318276168.

The previous prime is 742645061. The next prime is 742645087. The reversal of 742645078 is 870546247.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540601 + ... + 541972.

It is an arithmetic number, because the mean of its divisors is an integer number (81193050).

Almost surely, 2^742645078 is an apocalyptic number.

742645078 is a deficient number, since it is larger than the sum of its proper divisors (556443722).

742645078 is a wasteful number, since it uses less digits than its factorization.

742645078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082596 (or 1082582 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 43.

The square root of 742645078 is about 27251.5151505380. The cubic root of 742645078 is about 905.5805836774.

The spelling of 742645078 in words is "seven hundred forty-two million, six hundred forty-five thousand, seventy-eight".