403645652 has 36 divisors (see below), whose sum is σ = 748381536. Its totient is φ = 190466640.

The previous prime is 403645643. The next prime is 403645661. The reversal of 403645652 is 256546304.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (403645643) and next prime (403645661).

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, 639377 + ... + 640007.

It is an arithmetic number, because the mean of its divisors is an integer number (20788376).

Almost surely, 2^403645652 is an apocalyptic number.

It is an amenable number.

403645652 is a deficient number, since it is larger than the sum of its proper divisors (344735884).

403645652 is a wasteful number, since it uses less digits than its factorization.

403645652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116 (or 1095 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 403645652 is about 20090.9345725877. The cubic root of 403645652 is about 739.0379829143.

The spelling of 403645652 in words is "four hundred three million, six hundred forty-five thousand, six hundred fifty-two".