1494788780 has 12 divisors (see below), whose sum is σ = 3139056480. Its totient is φ = 597915504.

The previous prime is 1494788761. The next prime is 1494788797. The reversal of 1494788780 is 878874941.

It is a happy number.

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, 37369700 + ... + 37369739.

It is an arithmetic number, because the mean of its divisors is an integer number (261588040).

Almost surely, 2^1494788780 is an apocalyptic number.

1494788780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1494788780 is an abundant number, since it is smaller than the sum of its proper divisors (1644267700).

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

1494788780 is a wasteful number, since it uses less digits than its factorization.

1494788780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74739448 (or 74739446 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 56.

The square root of 1494788780 is about 38662.4983672809. The cubic root of 1494788780 is about 1143.3870693766.

The spelling of 1494788780 in words is "one billion, four hundred ninety-four million, seven hundred eighty-eight thousand, seven hundred eighty".