402020948374 has 4 divisors (see below), whose sum is σ = 603031422564. Its totient is φ = 201010474186.

The previous prime is 402020948363. The next prime is 402020948401. The reversal of 402020948374 is 473849020204.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 402020948374.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100505237092 + ... + 100505237095.

It is an arithmetic number, because the mean of its divisors is an integer number (150757855641).

Almost surely, 2^402020948374 is an apocalyptic number.

402020948374 is a deficient number, since it is larger than the sum of its proper divisors (201010474190).

402020948374 is a wasteful number, since it uses less digits than its factorization.

402020948374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201010474189.

The product of its (nonzero) digits is 387072, while the sum is 43.

Adding to 402020948374 its reverse (473849020204), we get a palindrome (875869968578).

The spelling of 402020948374 in words is "four hundred two billion, twenty million, nine hundred forty-eight thousand, three hundred seventy-four".