1240020422 has 8 divisors (see below), whose sum is σ = 1861109136. Its totient is φ = 619650712.

The previous prime is 1240020407. The next prime is 1240020437. The reversal of 1240020422 is 2240200421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1240020407) and next prime (1240020437).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1240020422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175418 + ... + 182349.

It is an arithmetic number, because the mean of its divisors is an integer number (232638642).

Almost surely, 2^1240020422 is an apocalyptic number.

1240020422 is a deficient number, since it is larger than the sum of its proper divisors (621088714).

1240020422 is a wasteful number, since it uses less digits than its factorization.

1240020422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359502.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1240020422 is about 35213.9236950386. The cubic root of 1240020422 is about 1074.3429688361.

Adding to 1240020422 its reverse (2240200421), we get a palindrome (3480220843).

The spelling of 1240020422 in words is "one billion, two hundred forty million, twenty thousand, four hundred twenty-two".