2440405402 has 32 divisors (see below), whose sum is σ = 3786596352. Its totient is φ = 1178909424.

The previous prime is 2440405379. The next prime is 2440405417. The reversal of 2440405402 is 2045040442.

It is a happy number.

It is a super-2 number, since 2×2440405402² = 11911157052221563208, which contains 22 as substring.

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, 5270623 + ... + 5271085.

It is an arithmetic number, because the mean of its divisors is an integer number (118331136).

Almost surely, 2^2440405402 is an apocalyptic number.

2440405402 is a deficient number, since it is larger than the sum of its proper divisors (1346190950).

2440405402 is a wasteful number, since it uses less digits than its factorization.

2440405402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042.

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 2440405402 is about 49400.4595322756. The cubic root of 2440405402 is about 1346.3376551264.

Adding to 2440405402 its reverse (2045040442), we get a palindrome (4485445844).

The spelling of 2440405402 in words is "two billion, four hundred forty million, four hundred five thousand, four hundred two".