1240151426 has 8 divisors (see below), whose sum is σ = 1862194320. Its totient is φ = 619419988.

The previous prime is 1240151417. The next prime is 1240151443. The reversal of 1240151426 is 6241510421.

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

It is a junction number, because it is equal to n+sod(n) for n = 1240151395 and 1240151404.

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, 325496 + ... + 329283.

It is an arithmetic number, because the mean of its divisors is an integer number (232774290).

Almost surely, 2^1240151426 is an apocalyptic number.

1240151426 is a deficient number, since it is larger than the sum of its proper divisors (622042894).

1240151426 is an equidigital number, since it uses as much as digits as its factorization.

1240151426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655728.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1240151426 is about 35215.7837623984. The cubic root of 1240151426 is about 1074.3808010813.

Adding to 1240151426 its reverse (6241510421), we get a palindrome (7481661847).

The spelling of 1240151426 in words is "one billion, two hundred forty million, one hundred fifty-one thousand, four hundred twenty-six".