78629542 has 16 divisors (see below), whose sum is σ = 122055120. Its totient is φ = 37965312.

The previous prime is 78629501. The next prime is 78629557. The reversal of 78629542 is 24592687.

It is a Harshad number since it is a multiple of its sum of digits (43).

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, 2518 + ... + 12790.

It is an arithmetic number, because the mean of its divisors is an integer number (7628445).

Almost surely, 2^78629542 is an apocalyptic number.

78629542 is a deficient number, since it is larger than the sum of its proper divisors (43425578).

78629542 is a wasteful number, since it uses less digits than its factorization.

78629542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10407.

The product of its digits is 241920, while the sum is 43.

The square root of 78629542 is about 8867.3300378412. The cubic root of 78629542 is about 428.4122843292.

The spelling of 78629542 in words is "seventy-eight million, six hundred twenty-nine thousand, five hundred forty-two".