64772430 has 16 divisors (see below), whose sum is σ = 155453904. Its totient is φ = 17272640.

The previous prime is 64772419. The next prime is 64772437. The reversal of 64772430 is 3427746.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64772391 and 64772400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64772437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1079511 + ... + 1079570.

It is an arithmetic number, because the mean of its divisors is an integer number (9715869).

Almost surely, 2^64772430 is an apocalyptic number.

64772430 is an abundant number, since it is smaller than the sum of its proper divisors (90681474).

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

64772430 is a wasteful number, since it uses less digits than its factorization.

64772430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159091.

The product of its (nonzero) digits is 28224, while the sum is 33.

The square root of 64772430 is about 8048.1320814211. The cubic root of 64772430 is about 401.6027981834.

The spelling of 64772430 in words is "sixty-four million, seven hundred seventy-two thousand, four hundred thirty".