2269478040 has 32 divisors (see below), whose sum is σ = 6808434480. Its totient is φ = 605194112.

The previous prime is 2269478023. The next prime is 2269478051. The reversal of 2269478040 is 408749622.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2269477983 and 2269478001.

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, 9456039 + ... + 9456278.

Almost surely, 2^2269478040 is an apocalyptic number.

2269478040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2269478040 is an abundant number, since it is smaller than the sum of its proper divisors (4538956440).

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

2269478040 is a wasteful number, since it uses less digits than its factorization.

2269478040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18912331 (or 18912327 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 2269478040 is about 47639.0390331291. The cubic root of 2269478040 is about 1314.1410902388.

The spelling of 2269478040 in words is "two billion, two hundred sixty-nine million, four hundred seventy-eight thousand, forty".