362640561 has 4 divisors (see below), whose sum is σ = 483520752. Its totient is φ = 241760372.

The previous prime is 362640541. The next prime is 362640581. The reversal of 362640561 is 165046263.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (362640541) and next prime (362640581).

It is a cyclic number.

It is not a de Polignac number, because 362640561 - 2⁷ = 362640433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (362640541) 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, 60440091 + ... + 60440096.

It is an arithmetic number, because the mean of its divisors is an integer number (120880188).

Almost surely, 2^362640561 is an apocalyptic number.

It is an amenable number.

362640561 is a deficient number, since it is larger than the sum of its proper divisors (120880191).

362640561 is a wasteful number, since it uses less digits than its factorization.

362640561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120880190.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 362640561 is about 19043.1237196002. The cubic root of 362640561 is about 713.1137207659.

The spelling of 362640561 in words is "three hundred sixty-two million, six hundred forty thousand, five hundred sixty-one".