72434680 has 16 divisors (see below), whose sum is σ = 162978120. Its totient is φ = 28973856.

The previous prime is 72434657. The next prime is 72434683. The reversal of 72434680 is 8643427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72434683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905394 + ... + 905473.

Almost surely, 2^72434680 is an apocalyptic number.

It is an amenable number.

72434680 is an abundant number, since it is smaller than the sum of its proper divisors (90543440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72434680 is a wasteful number, since it uses less digits than its factorization.

72434680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810878 (or 1810874 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 72434680 is about 8510.8565961365. The cubic root of 72434680 is about 416.8522806794.

The spelling of 72434680 in words is "seventy-two million, four hundred thirty-four thousand, six hundred eighty".