402037002 has 12 divisors (see below), whose sum is σ = 871080210. Its totient is φ = 134012328.

The previous prime is 402036997. The next prime is 402037007. The reversal of 402037002 is 200730204.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (402036997) and next prime (402037007).

It can be written as a sum of positive squares in only one way, i.e., 314033841 + 88003161 = 17721^2 + 9381^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 22335389 = 402037002 / (4 + 0 + 2 + 0 + 3 + 7 + 0 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (402037007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11167677 + ... + 11167712.

Almost surely, 2^402037002 is an apocalyptic number.

402037002 is an abundant number, since it is smaller than the sum of its proper divisors (469043208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402037002 is a wasteful number, since it uses less digits than its factorization.

402037002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22335397 (or 22335394 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 402037002 is about 20050.8603805423. The cubic root of 402037002 is about 738.0549125201.

Adding to 402037002 its reverse (200730204), we get a palindrome (602767206).

The spelling of 402037002 in words is "four hundred two million, thirty-seven thousand, two".