72389354 has 32 divisors (see below), whose sum is σ = 118540800. Its totient is φ = 33039360.

The previous prime is 72389347. The next prime is 72389389. The reversal of 72389354 is 45398327.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150887 + ... + 151365.

It is an arithmetic number, because the mean of its divisors is an integer number (3704400).

Almost surely, 2^72389354 is an apocalyptic number.

72389354 is a deficient number, since it is larger than the sum of its proper divisors (46151446).

72389354 is a wasteful number, since it uses less digits than its factorization.

72389354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638.

The product of its digits is 181440, while the sum is 41.

The square root of 72389354 is about 8508.1933452408. The cubic root of 72389354 is about 416.7653141008.

The spelling of 72389354 in words is "seventy-two million, three hundred eighty-nine thousand, three hundred fifty-four".