73239490 has 16 divisors (see below), whose sum is σ = 138769920. Its totient is φ = 27753840.

The previous prime is 73239479. The next prime is 73239499. The reversal of 73239490 is 9493237.

It is not an unprimeable number, because it can be changed into a prime (73239499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192546 + ... + 192925.

It is an arithmetic number, because the mean of its divisors is an integer number (8673120).

Almost surely, 2^73239490 is an apocalyptic number.

73239490 is a deficient number, since it is larger than the sum of its proper divisors (65530430).

73239490 is a wasteful number, since it uses less digits than its factorization.

73239490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385497.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 73239490 is about 8558.0073615299. The cubic root of 73239490 is about 418.3904572537.

The spelling of 73239490 in words is "seventy-three million, two hundred thirty-nine thousand, four hundred ninety".