2406989940 has 24 divisors (see below), whose sum is σ = 6739572000. Its totient is φ = 641863968.

The previous prime is 2406989929. The next prime is 2406989983. The reversal of 2406989940 is 499896042.

It is a happy number.

It is a super-2 number, since 2×2406989940² = 11587201142522407200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20058190 + ... + 20058309.

It is an arithmetic number, because the mean of its divisors is an integer number (280815500).

Almost surely, 2^2406989940 is an apocalyptic number.

2406989940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2406989940 is an abundant number, since it is smaller than the sum of its proper divisors (4332582060).

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

2406989940 is a wasteful number, since it uses less digits than its factorization.

2406989940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40116511 (or 40116509 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 51.

The square root of 2406989940 is about 49061.0837629990. The cubic root of 2406989940 is about 1340.1644448070.

The spelling of 2406989940 in words is "two billion, four hundred six million, nine hundred eighty-nine thousand, nine hundred forty".