401202520 has 16 divisors (see below), whose sum is σ = 902705760. Its totient is φ = 160480992.

The previous prime is 401202509. The next prime is 401202521. The reversal of 401202520 is 25202104.

It is a junction number, because it is equal to n+sod(n) for n = 401202494 and 401202503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401202521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5014992 + ... + 5015071.

It is an arithmetic number, because the mean of its divisors is an integer number (56419110).

Almost surely, 2^401202520 is an apocalyptic number.

401202520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401202520 is an abundant number, since it is smaller than the sum of its proper divisors (501503240).

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

401202520 is a wasteful number, since it uses less digits than its factorization.

401202520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10030074 (or 10030070 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 401202520 is about 20030.0404393002. The cubic root of 401202520 is about 737.5439146502.

Adding to 401202520 its reverse (25202104), we get a palindrome (426404624).

The spelling of 401202520 in words is "four hundred one million, two hundred two thousand, five hundred twenty".