402947601 has 8 divisors (see below), whose sum is σ = 614015424. Its totient is φ = 230255760.

The previous prime is 402947599. The next prime is 402947609. The reversal of 402947601 is 106749204.

It is a happy number.

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

It is not a de Polignac number, because 402947601 - 2¹ = 402947599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402947609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9593970 + ... + 9594011.

It is an arithmetic number, because the mean of its divisors is an integer number (76751928).

Almost surely, 2^402947601 is an apocalyptic number.

It is an amenable number.

402947601 is a deficient number, since it is larger than the sum of its proper divisors (211067823).

402947601 is a wasteful number, since it uses less digits than its factorization.

402947601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19187991.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 402947601 is about 20073.5547674048. The cubic root of 402947601 is about 738.6117147492.

It can be divided in two parts, 40294 and 7601, that added together give a triangular number (47895 = T₃₀₉).

The spelling of 402947601 in words is "four hundred two million, nine hundred forty-seven thousand, six hundred one".