1415235540 has 96 divisors (see below), whose sum is σ = 4235970816. Its totient is φ = 352168960.

The previous prime is 1415235457. The next prime is 1415235541. The reversal of 1415235540 is 455325141.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1415235498 and 1415235507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1415235541) 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, 44074 + ... + 69086.

It is an arithmetic number, because the mean of its divisors is an integer number (44124696).

Almost surely, 2^1415235540 is an apocalyptic number.

1415235540 is a gapful number since it is divisible by the number (10) 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 1415235540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2117985408).

1415235540 is an abundant number, since it is smaller than the sum of its proper divisors (2820735276).

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

1415235540 is a wasteful number, since it uses less digits than its factorization.

1415235540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25089 (or 25087 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1415235540 is about 37619.6164254767. The cubic root of 1415235540 is about 1122.7323645987.

The spelling of 1415235540 in words is "one billion, four hundred fifteen million, two hundred thirty-five thousand, five hundred forty".