2440245990 has 64 divisors (see below), whose sum is σ = 7208119296. Its totient is φ = 514864512.

The previous prime is 2440245979. The next prime is 2440245991. The reversal of 2440245990 is 995420442.

2440245990 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2440245990² = 11909600983422160200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440245991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 444202 + ... + 449661.

It is an arithmetic number, because the mean of its divisors is an integer number (112626864).

Almost surely, 2^2440245990 is an apocalyptic number.

2440245990 is an abundant number, since it is smaller than the sum of its proper divisors (4767873306).

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

2440245990 is a wasteful number, since it uses less digits than its factorization.

2440245990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893893.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 2440245990 is about 49398.8460391536. The cubic root of 2440245990 is about 1346.3083393617.

The spelling of 2440245990 in words is "two billion, four hundred forty million, two hundred forty-five thousand, nine hundred ninety".