402350998 has 16 divisors (see below), whose sum is σ = 701053344. Its totient is φ = 169608960.

The previous prime is 402350989. The next prime is 402351007. The reversal of 402350998 is 899053204.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (402350989) and next prime (402351007).

It is a self number, because there is not a number n which added to its sum of digits gives 402350998.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234715 + ... + 236422.

It is an arithmetic number, because the mean of its divisors is an integer number (43815834).

Almost surely, 2^402350998 is an apocalyptic number.

402350998 is a deficient number, since it is larger than the sum of its proper divisors (298702346).

402350998 is a wasteful number, since it uses less digits than its factorization.

402350998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471207.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 402350998 is about 20058.6888405000. The cubic root of 402350998 is about 738.2470059369.

The spelling of 402350998 in words is "four hundred two million, three hundred fifty thousand, nine hundred ninety-eight".