2134420040 has 32 divisors (see below), whose sum is σ = 5084943480. Its totient is φ = 803546112.

The previous prime is 2134420037. The next prime is 2134420051. The reversal of 2134420040 is 400244312.

It can be written as a sum of positive squares in 4 ways, for example, as 1677230116 + 457189924 = 40954^2 + 21382^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2134419994 and 2134420021.

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, 1568747 + ... + 1570106.

Almost surely, 2^2134420040 is an apocalyptic number.

2134420040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2134420040 is an abundant number, since it is smaller than the sum of its proper divisors (2950523440).

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

2134420040 is a wasteful number, since it uses less digits than its factorization.

2134420040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3138881 (or 3138877 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2134420040 is about 46199.7839821790. The cubic root of 2134420040 is about 1287.5377264843.

Adding to 2134420040 its reverse (400244312), we get a palindrome (2534664352).

The spelling of 2134420040 in words is "two billion, one hundred thirty-four million, four hundred twenty thousand, forty".