42060400 has 60 divisors (see below), whose sum is σ = 102542544. Its totient is φ = 16576000.

The previous prime is 42060391. The next prime is 42060401. The reversal of 42060400 is 406024.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42060401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27660 + ... + 29140.

Almost surely, 2^42060400 is an apocalyptic number.

42060400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42060400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51271272).

42060400 is an abundant number, since it is smaller than the sum of its proper divisors (60482144).

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

42060400 is a wasteful number, since it uses less digits than its factorization.

42060400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570 (or 1559 counting only the distinct ones).

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

The square root of 42060400 is about 6485.3989854133. The cubic root of 42060400 is about 347.7692132553.

Adding to 42060400 its reverse (406024), we get a palindrome (42466424).

The spelling of 42060400 in words is "forty-two million, sixty thousand, four hundred".