1240151472 has 320 divisors, whose sum is σ = 4236395520. Its totient is φ = 344321280.

The previous prime is 1240151461. The next prime is 1240151491. The reversal of 1240151472 is 2741510421.

1240151472 is a `hidden beast` number, since 1 + 2 + 40 + 151 + 472 = 666.

1240151472 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14941543 + ... + 14941625.

It is an arithmetic number, because the mean of its divisors is an integer number (13238736).

Almost surely, 2^1240151472 is an apocalyptic number.

1240151472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1240151472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2118197760).

1240151472 is an abundant number, since it is smaller than the sum of its proper divisors (2996244048).

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

1240151472 is an frugal number, since it uses more digits than its factorization.

1240151472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1240151472 is about 35215.7844155146. The cubic root of 1240151472 is about 1074.3808143651.

Adding to 1240151472 its reverse (2741510421), we get a palindrome (3981661893).

The spelling of 1240151472 in words is "one billion, two hundred forty million, one hundred fifty-one thousand, four hundred seventy-two".