60400420 has 12 divisors (see below), whose sum is σ = 126840924. Its totient is φ = 24160160.

The previous prime is 60400409. The next prime is 60400441. The reversal of 60400420 is 2400406.

It can be written as a sum of positive squares in 2 ways, for example, as 17707264 + 42693156 = 4208^2 + 6534^2 .

It is a junction number, because it is equal to n+sod(n) for n = 60400394 and 60400403.

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, 1509991 + ... + 1510030.

It is an arithmetic number, because the mean of its divisors is an integer number (10570077).

Almost surely, 2^60400420 is an apocalyptic number.

It is an amenable number.

60400420 is an abundant number, since it is smaller than the sum of its proper divisors (66440504).

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

60400420 is a wasteful number, since it uses less digits than its factorization.

60400420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020030 (or 3020028 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 60400420 is about 7771.7707120064. The cubic root of 60400420 is about 392.3557179940.

Adding to 60400420 its reverse (2400406), we get a palindrome (62800826).

The spelling of 60400420 in words is "sixty million, four hundred thousand, four hundred twenty".