402159919 has 16 divisors (see below), whose sum is σ = 480955968. Its totient is φ = 329052672.

The previous prime is 402159917. The next prime is 402159941. The reversal of 402159919 is 919951204.

It is a cyclic number.

It is not a de Polignac number, because 402159919 - 2¹ = 402159917 is a prime.

It is a super-2 number, since 2×402159919² = 323465200900173122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402159917) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 922 + ... + 28375.

It is an arithmetic number, because the mean of its divisors is an integer number (30059748).

Almost surely, 2^402159919 is an apocalyptic number.

402159919 is a deficient number, since it is larger than the sum of its proper divisors (78796049).

402159919 is a wasteful number, since it uses less digits than its factorization.

402159919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29394.

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 402159919 is about 20053.9252766136. The cubic root of 402159919 is about 738.1301213951.

The spelling of 402159919 in words is "four hundred two million, one hundred fifty-nine thousand, nine hundred nineteen".