402430140312 has 32 divisors (see below), whose sum is σ = 1007021863680. Its totient is φ = 134017178400.

The previous prime is 402430140271. The next prime is 402430140341. The reversal of 402430140312 is 213041034204.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7861564 + ... + 7912587.

It is an arithmetic number, because the mean of its divisors is an integer number (31469433240).

Almost surely, 2^402430140312 is an apocalyptic number.

It is an amenable number.

402430140312 is an abundant number, since it is smaller than the sum of its proper divisors (604591723368).

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

402430140312 is a wasteful number, since it uses less digits than its factorization.

402430140312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15775223 (or 15775219 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 402430140312 its reverse (213041034204), we get a palindrome (615471174516).

The spelling of 402430140312 in words is "four hundred two billion, four hundred thirty million, one hundred forty thousand, three hundred twelve".