32402945 has 8 divisors (see below), whose sum is σ = 38914344. Its totient is φ = 25901824.

The previous prime is 32402941. The next prime is 32402957. The reversal of 32402945 is 54920423.

It can be written as a sum of positive squares in 4 ways, for example, as 2119936 + 30283009 = 1456^2 + 5503^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 32402945 - 2² = 32402941 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32402941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9737 + ... + 12633.

It is an arithmetic number, because the mean of its divisors is an integer number (4864293).

Almost surely, 2^32402945 is an apocalyptic number.

It is an amenable number.

32402945 is a deficient number, since it is larger than the sum of its proper divisors (6511399).

32402945 is a wasteful number, since it uses less digits than its factorization.

32402945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5139.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 32402945 is about 5692.3584743057. The cubic root of 32402945 is about 318.8072295038.

The spelling of 32402945 in words is "thirty-two million, four hundred two thousand, nine hundred forty-five".