72569430 has 48 divisors (see below), whose sum is σ = 199783584. Its totient is φ = 18213120.

The previous prime is 72569429. The next prime is 72569437. The reversal of 72569430 is 3496527.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72569437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22186 + ... + 25245.

It is an arithmetic number, because the mean of its divisors is an integer number (4162158).

Almost surely, 2^72569430 is an apocalyptic number.

72569430 is an abundant number, since it is smaller than the sum of its proper divisors (127214154).

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

72569430 is a wasteful number, since it uses less digits than its factorization.

72569430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47461 (or 47458 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 72569430 is about 8518.7692773076. The cubic root of 72569430 is about 417.1106102037.

The spelling of 72569430 in words is "seventy-two million, five hundred sixty-nine thousand, four hundred thirty".