732645816 has 64 divisors (see below), whose sum is σ = 2160814080. Its totient is φ = 202573440.

The previous prime is 732645811. The next prime is 732645817. The reversal of 732645816 is 618546237.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (732645811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65131 + ... + 75546.

It is an arithmetic number, because the mean of its divisors is an integer number (33762720).

Almost surely, 2^732645816 is an apocalyptic number.

It is an amenable number.

732645816 is an abundant number, since it is smaller than the sum of its proper divisors (1428168264).

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

732645816 is a wasteful number, since it uses less digits than its factorization.

732645816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140724 (or 140720 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 732645816 is about 27067.4309087508. The cubic root of 732645816 is about 901.4978416090.

The spelling of 732645816 in words is "seven hundred thirty-two million, six hundred forty-five thousand, eight hundred sixteen".