72429830 has 16 divisors (see below), whose sum is σ = 142226064. Its totient is φ = 26338080.

The previous prime is 72429817. The next prime is 72429839. The reversal of 72429830 is 3892427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72429839) 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, 329117 + ... + 329336.

It is an arithmetic number, because the mean of its divisors is an integer number (8889129).

Almost surely, 2^72429830 is an apocalyptic number.

72429830 is a deficient number, since it is larger than the sum of its proper divisors (69796234).

72429830 is a wasteful number, since it uses less digits than its factorization.

72429830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658471.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 72429830 is about 8510.5716611753. The cubic root of 72429830 is about 416.8429767627.

The spelling of 72429830 in words is "seventy-two million, four hundred twenty-nine thousand, eight hundred thirty".