1495640880 has 240 divisors, whose sum is σ = 5239593216. Its totient is φ = 381911040.

The previous prime is 1495640873. The next prime is 1495640891. The reversal of 1495640880 is 880465941.

1495640880 is a `hidden beast` number, since 1 + 4 + 9 + 564 + 0 + 8 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2521864 + ... + 2522456.

Almost surely, 2^1495640880 is an apocalyptic number.

1495640880 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 1495640880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2619796608).

1495640880 is an abundant number, since it is smaller than the sum of its proper divisors (3743952336).

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

1495640880 is a wasteful number, since it uses less digits than its factorization.

1495640880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 1495640880 is about 38673.5165197064. The cubic root of 1495640880 is about 1143.6042895986.

The spelling of 1495640880 in words is "one billion, four hundred ninety-five million, six hundred forty thousand, eight hundred eighty".