2780426004 has 48 divisors (see below), whose sum is σ = 6624072000. Its totient is φ = 907395840.

The previous prime is 2780425997. The next prime is 2780426017. The reversal of 2780426004 is 4006240872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312984 + ... + 321744.

It is an arithmetic number, because the mean of its divisors is an integer number (138001500).

Almost surely, 2^2780426004 is an apocalyptic number.

It is an amenable number.

2780426004 is an abundant number, since it is smaller than the sum of its proper divisors (3843645996).

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

2780426004 is a wasteful number, since it uses less digits than its factorization.

2780426004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9320 (or 9318 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 2780426004 is about 52729.7449642989. The cubic root of 2780426004 is about 1406.1676870497.

Adding to 2780426004 its reverse (4006240872), we get a palindrome (6786666876).

The spelling of 2780426004 in words is "two billion, seven hundred eighty million, four hundred twenty-six thousand, four".