72434070 has 24 divisors (see below), whose sum is σ = 188328816. Its totient is φ = 19315728.

The previous prime is 72434057. The next prime is 72434081. The reversal of 72434070 is 7043427.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 402322 + ... + 402501.

It is an arithmetic number, because the mean of its divisors is an integer number (7847034).

Almost surely, 2^72434070 is an apocalyptic number.

72434070 is an abundant number, since it is smaller than the sum of its proper divisors (115894746).

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

72434070 is a wasteful number, since it uses less digits than its factorization.

72434070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804836 (or 804833 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 72434070 is about 8510.8207594803. The cubic root of 72434070 is about 416.8511105188.

Adding to 72434070 its reverse (7043427), we get a palindrome (79477497).

The spelling of 72434070 in words is "seventy-two million, four hundred thirty-four thousand, seventy".