72234734 has 64 divisors (see below), whose sum is σ = 137168640. Its totient is φ = 28024320.

The previous prime is 72234731. The next prime is 72234769. The reversal of 72234734 is 43743227.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72234734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72234731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 403457 + ... + 403635.

It is an arithmetic number, because the mean of its divisors is an integer number (2143260).

Almost surely, 2^72234734 is an apocalyptic number.

72234734 is a deficient number, since it is larger than the sum of its proper divisors (64933906).

72234734 is a wasteful number, since it uses less digits than its factorization.

72234734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305.

The product of its digits is 28224, while the sum is 32.

The square root of 72234734 is about 8499.1019525595. The cubic root of 72234734 is about 416.4683727036.

The spelling of 72234734 in words is "seventy-two million, two hundred thirty-four thousand, seven hundred thirty-four".