2506426940 has 24 divisors (see below), whose sum is σ = 5265645840. Its totient is φ = 1002161408.

The previous prime is 2506426939. The next prime is 2506426969. The reversal of 2506426940 is 496246052.

It is a junction number, because it is equal to n+sod(n) for n = 2506426894 and 2506426903.

It is a congruent number.

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, 27284 + ... + 75876.

It is an arithmetic number, because the mean of its divisors is an integer number (219401910).

Almost surely, 2^2506426940 is an apocalyptic number.

2506426940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2506426940 is an abundant number, since it is smaller than the sum of its proper divisors (2759218900).

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

2506426940 is a wasteful number, since it uses less digits than its factorization.

2506426940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51181 (or 51179 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 2506426940 is about 50064.2281474508. The cubic root of 2506426940 is about 1358.3708397019.

The spelling of 2506426940 in words is "two billion, five hundred six million, four hundred twenty-six thousand, nine hundred forty".