1514423240 has 128 divisors (see below), whose sum is σ = 3955029120. Its totient is φ = 515788800.

The previous prime is 1514423231. The next prime is 1514423249. The reversal of 1514423240 is 423244151.

It is an interprime number because it is at equal distance from previous prime (1514423231) and next prime (1514423249).

It is not an unprimeable number, because it can be changed into a prime (1514423249) 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, 2191295 + ... + 2191985.

It is an arithmetic number, because the mean of its divisors is an integer number (30898665).

Almost surely, 2^1514423240 is an apocalyptic number.

1514423240 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 1514423240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1977514560).

1514423240 is an abundant number, since it is smaller than the sum of its proper divisors (2440605880).

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

1514423240 is a wasteful number, since it uses less digits than its factorization.

1514423240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023 (or 1019 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1514423240 is about 38915.5912199725. The cubic root of 1514423240 is about 1148.3715426226.

Adding to 1514423240 its reverse (423244151), we get a palindrome (1937667391).

Subtracting from 1514423240 its reverse (423244151), we obtain a square (1091179089 = 33033²).

The spelling of 1514423240 in words is "one billion, five hundred fourteen million, four hundred twenty-three thousand, two hundred forty".