402191060 has 12 divisors (see below), whose sum is σ = 844601268. Its totient is φ = 160876416.

The previous prime is 402191059. The next prime is 402191077. The reversal of 402191060 is 60191204.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 106419856 + 295771204 = 10316^2 + 17198^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10054757 + ... + 10054796.

It is an arithmetic number, because the mean of its divisors is an integer number (70383439).

Almost surely, 2^402191060 is an apocalyptic number.

It is an amenable number.

402191060 is an abundant number, since it is smaller than the sum of its proper divisors (442410208).

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

402191060 is a wasteful number, since it uses less digits than its factorization.

402191060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20109562 (or 20109560 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 402191060 is about 20054.7016931192. The cubic root of 402191060 is about 738.1491731170.

The spelling of 402191060 in words is "four hundred two million, one hundred ninety-one thousand, sixty".