402937842 has 32 divisors (see below), whose sum is σ = 854280000. Its totient is φ = 126263808.

The previous prime is 402937823. The next prime is 402937867. The reversal of 402937842 is 248739204.

It is a self number, because there is not a number n which added to its sum of digits gives 402937842.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113409 + ... + 116907.

It is an arithmetic number, because the mean of its divisors is an integer number (26696250).

Almost surely, 2^402937842 is an apocalyptic number.

402937842 is an abundant number, since it is smaller than the sum of its proper divisors (451342158).

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

402937842 is a wasteful number, since it uses less digits than its factorization.

402937842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4650.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 402937842 is about 20073.3116849213. The cubic root of 402937842 is about 738.6057518813.

The spelling of 402937842 in words is "four hundred two million, nine hundred thirty-seven thousand, eight hundred forty-two".