402987362 has 4 divisors (see below), whose sum is σ = 604481046. Its totient is φ = 201493680.

The previous prime is 402987331. The next prime is 402987367. The reversal of 402987362 is 263789204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 313325401 + 89661961 = 17701^2 + 9469^2 .

It is not an unprimeable number, because it can be changed into a prime (402987367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100746839 + ... + 100746842.

Almost surely, 2^402987362 is an apocalyptic number.

402987362 is a deficient number, since it is larger than the sum of its proper divisors (201493684).

402987362 is a wasteful number, since it uses less digits than its factorization.

402987362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201493683.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 402987362 is about 20074.5451256062. The cubic root of 402987362 is about 738.6360082093.

The spelling of 402987362 in words is "four hundred two million, nine hundred eighty-seven thousand, three hundred sixty-two".